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Cisco ASA 5500 Series Command Reference, 8.2
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About This Guide
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Using the Command Line Interface
- A through B Commands
- C Commands
- D through F Commands
- G through I Commands
- J through L Commands
- M through O Commands
- P through R Commands
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S Commands
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same-security-traffic -- show asdm sessions
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show asp drop -- show curpriv
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show ddns -- show ipv6 traffic
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show isakmp sa -- show route
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show running-config -- show running-config isakmp
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show running-config ldap -- show running-config webvpn auto-signon
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show service-policy -- show xlate
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shun -- sysopt radius ignore-secret
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- T through Z Commands
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Feedback
Table Of Contents
acl-netmask-convert through auto-update timeout Commands
address (dynamic-filter blacklist or whitelist)
address-pool (tunnel-group general attributes mode)
address-pools (group-policy attributes configuration mode)
application-access hide-details
authenticated-session-username
authentication-attr-from-server
authentication-server-group (imap4s, pop3s, smtps)
authentication-server-group (tunnel-group general-attributes)
acl-netmask-convert through auto-update timeout Commands
acl-netmask-convert
Use the acl-netmask-convert command in aaa-server host configuration mode to specify how the adaptive security appliance treats netmasks received in a downloadable ACL from a RADIUS server which is accessed by using the aaa-server host command. Use the no form of this command to remove the speciied behavior for the adaptive security appliance.
acl-netmask-convert {auto-detect | standard | wildcard}
no acl-netmask-convert
Syntax Description
Defaults
By default, no conversion from wildcard netmask expressions is performed.
Command Modes
The following table shows the modes in which you can enter the command:
Aaa-server configuration host
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Command History
Usage Guidelines
Use the acl-netmask-convert command with the wildcard or auto-detect keywords when a RADIUS server provides downloadable ACLs that contain netmasks in wildcard format. The adaptive security appliance expects downloadable ACLs to contain standard netmask expressions whereas Cisco VPN 3000 series concentrators expect downloadable ACLs to contain wildcard netmask expressions, which are the reverse of a standard netmas expression. A wildcard mask has ones in bit positions to ignore, zeros in bit positions to match.The acl-netmask-convert command helps minimize the effects of these differences upon how you configure downloadable ACLs on your RADIUS servers.
The auto-detect keyword is helpful when you are uncertain how the RADIUS server is configured; however, wildcard netmask expressions with "holes" in them cannot be unambiguously detected and converted. For example, the wildcard netmask 0.0.255.0 permits anything in the third octet and can be used validly on Cisco VPN 3000 series concentrators, but the adaptive security appliance may not detect this expression as a wildcard netmask.
Examples
The following example configures a RADIUS AAA server named "srvgrp1" on host "192.168.3.4", enables conversion of downloadable ACL netmasks, sets a timeout of 9 seconds, sets a retry-interval of 7 seconds, and configures authentication port 1650:
hostname(config)#aaa-server svrgrp1 protocol radiushostname(config-aaa-server-group)#aaa-server svrgrp1 host 192.168.3.4hostname(config-aaa-server-host)#acl-netmask-convert wildcardhostname(config-aaa-server-host)#timeout 9hostname(config-aaa-server-host)#retry-interval 7hostname(config-aaa-server-host)#authentication-port 1650hostname(config-aaa-server-host)#exithostname(config)#Related Commands
action
To either apply access policies to a session or teminate the session, use the action command in dynamic-access-policy-record configuration mode.
To reset the session to apply an access policy to a session, use the no form of the command.
action {continue | terminate}
no action {continue | terminate}
Syntax Description
Defaults
The default value is continue.
Command Modes
The following table shows the modes in which you can enter the command:
Dynamic-access-policy- record configuration
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Command History
Usage Guidelines
Use the continue keyword to apply the access policies to the session in all of the selected DAP records. Use the terminate keyword to terminate the connection in any of the selected DAP records.
Examples
The following example shows how to terminate a session for the DAP policy Finance:
hostname (config)#config-dynamic-access-policy-record Financehostname(config-dynamic-access-policy-record)#action terminatehostname(config-dynamic-access-policy-record)#Related Commands
action-uri
To specify a web server URI to receive a username and password for single sign-on authentication, use the action-uri command in aaa-server-host configuration mode. This is an SSO with HTTP Forms command. Use the no form of the command to reset the URI parameter value, .
action-uri string
no action-uri
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Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Aaa-server host configuration
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Command History
Usage Guidelines
A URI or Uniform Resource Identifier is a compact string of characters that identifies a point of content on the Internet, whether it be a page of text, a video or sound clip, a still or animated image, or a program. The most common form of URI is the web page address, which is a particular form or subset of URI called a URL.
The WebVPN server of the adaptive security appliance can use a POST request to submit a single sign-on authentication request to an authenticating web server. To accomplish this, configure the adaptive security appliance to pass a username and a password to an action URI on an authenticating web server using an HTTP POST request. The action-uri command specifies the location and name of the authentication program on the web server to which the adaptive security appliance sends the POST request.
You can discover the action URI on the authenticating web server by connecting to the web server login page directly with a browser. The URL of the login web page displayed in your browser is the action URI for the authenticating web server.
For ease of entry, you can enter URIs on multiple, sequential lines. The adaptive security appliance then concatenates the lines into the URI as you enter them. While the maximum characters per action-uri line is 255 characters, you can enter fewer characters on each line.
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Examples
The following example specifies the URI on www.example.com:
http://www.example.com/auth/index.html/appdir/authc/forms/MCOlogin.fcc?TYPE=33554433&REALMOID=06-000a1311-a828-1185-ab41-8333b16a0008&GUID=&SMAUTHREASON=0&METHOD=GET&SMAGENTNAME=$SM$5FZmjnk3DRNwNjk2KcqVCFbIrNT9%2bJ0H0KPshFtg6rB1UV2PxkHqLw%3d%3d&TARGET=https%3A%2F%2Fauth.example.com
hostname(config)# aaa-server testgrp1 host www.example.comhostname(config-aaa-server-host)# action-uri http://www.example.com/auth/index.htmhostname(config-aaa-server-host)# action-uri l/appdir/authc/forms/MCOlogin.fcc?TYPhostname(config-aaa-server-host)# action-uri 554433&REALMOID=06-000a1311-a828-1185hostname(config-aaa-server-host)# action-uri -ab41-8333b16a0008&GUID=&SMAUTHREASONhostname(config-aaa-server-host)# action-uri =0&METHOD=GET&SMAGENTNAME=$SM$5FZmjnkhostname(config-aaa-server-host)# action-uri 3DRNwNjk2KcqVCFbIrNT9%2bJ0H0KPshFtg6rhostname(config-aaa-server-host)# action-uri B1UV2PxkHqLw%3d%3d&TARGET=https%3A%2Fhostname(config-aaa-server-host)# action-uri %2Fauth.example.comhostname(config-aaa-server-host)#
Note
Related Commands
activation-key
To change the activation key on the adaptive security appliance, use the activation-key command in privileged EXEC mode.
activation-key key
Syntax Description
Defaults
By default, your adaptive security appliance ships with a license already installed. This license might be the Base License, to which you want to add more licenses, or it might already have all of your licenses installed, depending on what you ordered and what your vendor installed for you. See the show activation-key command to determine which licenses you have installed.
Command Modes
The following table shows the modes in which you can enter the command:
Privileged EXEC mode
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Command History
7.0(1)
This command was introduced.
8.0(4)/8.1(2)
Support for temporary licenses was introduced.
8.2(1)
Support for shared licenses was introduced.
Usage Guidelines
Obtaining an Activation Key
To obtain an activation key, you need a Product Authorization Key, which you can purchase from your Cisco account representative. You need to purchase a separate Product Activation Key for each feature license. For example, if you have the Base License, you can purchase separate keys for Advanced Endpoint Assessment and for additional SSL VPN sessions.
After obtaining the Product Authorization Keys, register them on Cisco.com at one of the following URLs.
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http://www.cisco.com/go/license/publicFailover Guidelines
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Upgrading Guidelines
Your activation key remains compatible if you upgrade to Version 8.2 or later, and also if you later downgrade. After you upgrade, if you activate additional feature licenses that were introduced before 8.2, then the activation key continues to be compatible with earlier versions if you downgrade. However if you activate feature licenses that were introduced in 8.2 or later, then the activation key is not backwards compatible. If you have an incompatible license key, then see the following guidelines:
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Additional Guidelines
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Examples
The following example shows how to change the activation key on the adaptive security appliance:
hostname# activation-key 0xd11b3d48 0xa80a4c0a 0x48e0fd1c 0xb0443480 0x843fc490
Related Commands
active (call home)
To enable a destination profile for Call Home, use the active command in call home profile configuration mode. To disable a profile, use the no form of the command. To enable a user-defined profile, use the default form of the command, or to disable the CiscoTac-1 predefined profile, use the default form of the command.
active
no active
default active
Syntax Description
This command has no arguments or keywords.
Defaults
A user-defined destination profile is automatically enabled in Call Home after it is created. The predefined CiscoTac-1 profile is disabled.
Command Modes
The following table shows the modes in which you can enter the command:
Call home profile configuration
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Usage Guidelines
A destination profile in Call Home is enabled when it is created. To disable a profile, use the no active command.
Examples
The following example shows how to disable a destination profile that is automatically activated upon creation:
hostname(config)# call-homehostname(cfg-call-home)# profile ciscohostname(cfg-call-home-profile)# no activeThe following shows how to reactivate a destination profile that is disabled:
hostname(config)# call-homehostname(cfg-call-home)# profile ciscohostname(cfg-call-home-profile)# activeRelated Commands
call-home (global configuration)
Enters call home configuration mode for configuration of Call Home settings.
show call-home
Displays Call Home configuration information.
activex-relay
To incorporate applications that need ActiveX over the clientless portal, use the activex-relay command in group-policy webvpn configuration mode or username webvpn configuration mode. Use the no form of this command to inherit the activex-relay command from the default group policy.
activex-relay {enable | disable}
no activex-relay
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Group-policy webvpn configuration
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Username webvpn configuration
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Usage Guidelines
Use the activex-relay enable command to let users launch ActiveX from the WebVPN browser for any HTML content that has the object tags (such as images, audio, videos, JAVA applets, ActiveX, pdf, or flash). These applications use the WebVPN session to download and upload ActiveX controls. The ActiveX relay remains in force until the WebVPN session closes. If you plan to use something like Microsoft OWA 2007, you should disable ActiveX.
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Examples
The following commands enable ActiveX controls on WebVPN sessions associated with a given group policy:
hostname(config-group-policy)# webvpnhostname(config-group-webvpn)# activex-relay enablehostname(config-group-webvpn)The following commands disable ActiveX controls on WebVPN sessions associated with a given username:
hostname(config-username-policy)# webvpnhostname(config-username-webvpn)# activex-relay disablehostname(config-username-webvpn)address (dynamic-filter blacklist or whitelist)
To add an IP address to the Botnet Traffic Filter blacklist or whitelist, use the address command in dynamic-filter blacklist or whitelist configuration mode. To remove the address, use the no form of this command. The static database lets you augment the dynamic database with domain names or IP addresses that you want to whitelist or blacklist.
address ip_address mask
no address ip_address mask
Syntax Description
ip_address
Adds an IP address to the blacklist.
mask
Defines the subnet mask for the IP address. The mask can be for a single host or for a subnet.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Dynamic-filter blacklist or whitelist configuration
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Usage Guidelines
After you enter the dynamic-filter whitelist or blacklist configuration mode, you can manually enter domain names or IP addresses (host or subnet) that you want to tag as good names in a whitelist or bad names in a blacklist using the address and name commands.
You can enter this command multiple times for multiple entries. You can add up to 1000 blacklist and 1000 whitelist entries.
Examples
The following example creates entries for the blacklist and whitelist:
hostname(config)# dynamic-filter blacklisthostname(config-llist)# name bad1.example.comhostname(config-llist)# name bad2.example.comhostname(config-llist)# address 10.1.1.1 255.255.255.0hostname(config-llist)# dynamic-filter whitelisthostname(config-llist)# name good.example.comhostname(config-llist)# name great.example.comhostname(config-llist)# name awesome.example.comhostname(config-llist)# address 10.1.1.2 255.255.255.255Related Commands
address (media-termination)
To specify the address for a media termination instance to use for media connections to the Phone Proxy feature, use the address command in the media-termination configuration mode. To remove the address from the media termination configuration, use the no form of this command.
address ip_address [interface intf_name]
no address ip_address [interface intf_name]
Syntax Description
Defaults
There are no default settings for this command.
Command Modes
The following table shows the modes in which you can enter the command:
Media-termination configuration
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Usage Guidelines
The adaptive security appliance must have IP addresses for media termination that meet the following criteria:
For the media termination instance, you can configure a global media-termination address for all interfaces or configure a media-termination address for different interfaces. However, you cannot use a global media-termination address and media-termination addresses configured for each interface at the same time.
If you configure a media termination address for multiple interfaces, you must configure an address on each interface that the adaptive security appliance uses when communicating with IP phones.
The IP addresses are publicly routable addresses that are unused IP addresses within the address range on that interface.
See Cisco ASA 5500 Series Configuration Guide using the CLI for the complete list of prerequisites that you must follow when creating the media termination instance and configuring the media termination addresses.
Examples
The following example shows the use of the media-termination address command to specify the IP address to use for media connections:
hostname(config)# media-termination mediaterm1hostname(config-media-termination)# address 192.0.2.25 interface insidehostname(config-media-termination)# address 10.10.0.25 interface outsideRelated Commands
phone-proxy
Configures the Phone Proxy instance.
media-termination
Configures the media termination instance to apply to a Phone Proxy instance.
address-pool (tunnel-group general attributes mode)
To specify a list of address pools for allocating addresses to remote clients, use the address-pool command in tunnel-group general-attributes configuration mode. To eliminate address pools, use the no form of this command.
address-pool [(interface name)] address_pool1 [...address_pool6]
no address-pool [(interface name)] address_pool1 [...address_pool6]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group general-attributes configuration
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Usage Guidelines
You can enter multiples of each of these commands, one per interface. If an interface is not specified, then the command specifies the default for all interfaces that are not explicitly referenced.
The address-pools settings in the group-policy address-pools command override the local pool settings in the tunnel group address-pool command.
The order in which you specify the pools is significant. The adaptive security appliance allocates addresses from these pools in the order in which the pools appear in this command.
Examples
The following example entered in config-tunnel-general configuration mode, specifies a list of address pools for allocating addresses to remote clients for an IPSec remote-access tunnel group test:
hostname(config)# tunnel-group test type remote-accesshostname(config)# tunnel-group test generalhostname(config-tunnel-general)# address-pool (inside) addrpool1 addrpool2 addrpool3hostname(config-tunnel-general)#Related Commands
address-pools (group-policy attributes configuration mode)
To specify a list of address pools for allocating addresses to remote clients, use the address-pools command in group-policy attributes configuration mode. To remove the attribute from the group policy and enable inheritance from other sources of group policy, use the no form of this command.
address-pools value address_pool1 [...address_pool6]
no address-pools value address_pool1 [...address_pool6]
address-pools none
no address-pools none
Syntax Description
Defaults
By default, the address pool attribute allows inheritance.
Command Modes
The following table shows the modes in which you can enter the command:
group-policy attributes configuration
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Usage Guidelines
The address-pools settings in this command override the local pool settings in the group. You can specify a list of up to six local address pools to use for local address allocation.
The order in which you specify the pools is significant. The adaptive security appliance allocates addresses from these pools in the order in which the pools appear in this command.
The command address-pools none disables this attribute from being inherited from other sources of policy, such as the DefaultGrpPolicy. The command no address pools none removes the address-pools none command from the configuration, restoring the default value, which is to allow inheritance.
Examples
The following example entered in config-general configuration mode, configures pool_1 and pool_20 as lists of address pools to use for allocating addresses to remote clients for GroupPolicy1:
hostname(config)# ip local pool pool_1 192.168.10.1-192.168.10.100 mask 255.255.0.0hostname(config)# ip local pool pool_20 192.168.20.1-192.168.20.200 mask 255.255.0.0hostname(config)# group-policy GroupPolicy1 attributeshostname(config-group-policy)# address-pools value pool_1 pool_20hostname(config-group-policy)#Related Commands
admin-context
To set the admin context for the system configuration, use the admin-context command in global configuration mode. The system configuration does not include any network interfaces or network settings for itself; rather, when the system needs to access network resources (such as downloading the adaptive security appliance software or allowing remote management for an administrator), it uses one of the contexts that is designated as the admin context.
admin-context name
Syntax Description
Defaults
For a new adaptive security appliance in multiple context mode, the admin context is called "admin."
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Usage Guidelines
You can set any context to be the admin context, as long as the context configuration resides on the internal Flash memory.
You cannot remove the current admin context, unless you remove all contexts using the clear configure context command.
Examples
The following example sets the admin context to be "administrator":
hostname(config)# admin-context administratorRelated Commands
alias
To manually translate an address and perform DNS reply modification, use the alias command in global configuration mode. To remove an alias command, use the no form of this command.
alias (interface_name) real_ip mapped_ip [netmask]
no alias (interface_name) real_ip mapped_ip [netmask]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Usage Guidelines
This command functionality has been replaced by outside NAT commands, including the nat and static commands with the dns keyword. We recommend that you use outside NAT instead of the alias command.
Use this command to perform address translation on a destination address. For example, if a host sends a packet to 209.165.201.1, use the alias command to redirect traffic to another address, such as 209.165.201.30.
Note
After changing or removing an alias command, use the clear xlate command.
An A (address) record must exist in the DNS zone file for the "dnat" address in the alias command.
The alias command has two uses that can be summarized in the following ways:
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The alias command automatically interacts with the DNS servers on your network to ensure that domain name access to the aliased IP address is handled transparently.
Specify a net alias by using network addresses for the real_ip and mapped_ip IP addresses. For example, the alias 192.168.201.0 209.165.201.0 255.255.255.224 command creates aliases for each IP address between 209.165.201.1 and 209.165.201.30.
To access an alias mapped_ip address with static and access-list commands, specify the mapped_ip address in the access-list command as the address from which traffic is permitted as follows:
hostname(config)# alias (inside) 192.168.201.1 209.165.201.1 255.255.255.255hostname(config)# static (inside,outside) 209.165.201.1 192.168.201.1 netmask 255.255.255.255hostname(config)# access-list acl_out permit tcp host 192.168.201.1 host 209.165.201.1 eq ftp-datahostname(config)# access-group acl_out in interface outsideAn alias is specified with the inside address 192.168.201.1 mapping to the destination address 209.165.201.1.
When the inside network client 209.165.201.2 connects to example.com, the DNS response from an external DNS server to the internal client's query would be altered by the adaptive security appliance to be 192.168.201.29. If the adaptive security appliance uses 209.165.200.225 through 209.165.200.254 as the global pool IP addresses, the packet goes to the adaptive security appliance with SRC=209.165.201.2 and DST=192.168.201.29. The adaptive security appliance translates the address to SRC=209.165.200.254 and DST=209.165.201.29 on the outside.
Examples
The following example shows that the inside network contains the IP address 209.165.201.29, which on the Internet belongs to example.com. When inside clients try to access example.com, the packets do not go to the adaptive security appliance because the client assumes that the 209.165.201.29 is on the local inside network. To correct this behavior, use the alias command as follows:
hostname(config)#alias (inside) 192.168.201.0 209.165.201.0 255.255.255.224hostname(config)# show running-config aliasalias 192.168.201.0 209.165.201.0 255.255.255.224This example shows a web server that is on the inside at 10.1.1.11 and the static command that was created at 209.165.201.11. The source host is on the outside with address 209.165.201.7. A DNS server on the outside has a record for www.example.com as follows:
dns-server# www.example.com. IN A 209.165.201.11You must include the period at the end of the www.example.com. domain name.
This example shows how to use the alias command:
hostname(config)# alias 10.1.1.11 209.165.201.11 255.255.255.255The adaptive security appliance changes the name server replies to 10.1.1.11 for inside clients to directly connect to the web server.
To provide access you also need the following commands:
hostname(config)# static (inside,outside) 209.165.201.11 10.1.1.11hostname(config)# access-list acl_grp permit tcp host 209.165.201.7 host 209.165.201.11 eq telnethostname(config)# access-list acl_grp permit tcp host 209.165.201.11 eq telnet host 209.165.201.7Related Commands
allocate-interface
To allocate interfaces to a security context, use the allocate-interface command in context configuration mode. To remove an interface from a context, use the no form of this command.
allocate-interface physical_interface [map_name] [visible | invisible]
no allocate-interface physical_interface
allocate-interface physical_interface.subinterface[-physical_interface.subinterface] [map_name[-map_name]] [visible | invisible]
no allocate-interface physical_interface.subinterface[-physical_interface.subinterface]
Syntax Description
invisible
(Default) Allows context users to only see the mapped name (if configured) in the show interface command.
map_name
(Optional) Sets a mapped name.
The map_name is an alphanumeric alias for the interface that can be used within the context instead of the interface ID. If you do not specify a mapped name, the interface ID is used within the context. For security purposes, you might not want the context administrator to know which interfaces are being used by the context.
A mapped name must start with a letter, end with a letter or digit, and have as interior characters only letters, digits, or an underscore. For example, you can use the following names:
int0intaint_0For subinterfaces, you can specify a range of mapped names.
See the "Usage Guidelines" section for more information about ranges.
physical_interface
Sets the interface ID, such as gigabitethernet0/1. See the interface command for accepted values. Do not include a space between the interface type and the port number.
subinterface
Sets the subinterface number. You can identify a range of subinterfaces.
visible
(Optional) Allows context users to see physical interface properties in the show interface command even if you set a mapped name.
Defaults
The interface ID is invisible in the show interface command output by default if you set a mapped name.
Command Modes
The following table shows the modes in which you can enter the command:
Context configuration
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Command History
Usage Guidelines
You can enter this command multiple times to specify different ranges. To change the mapped name or visible setting, reenter the command for a given interface ID, and set the new values; you do not need to enter the no allocate-interface command and start over. If you remove the allocate-interface command, the adaptive security appliance removes any interface-related configuration in the context.
Transparent firewall mode allows only two interfaces to pass through traffic; however, on the ASA adaptive security appliance, you can use the dedicated management interface, Management 0/0, (either the physical interface or a subinterface) as a third interface for management traffic.
Note
You can assign the same interfaces to multiple contexts in routed mode, if desired. Transparent mode does not allow shared interfaces.
If you specify a range of subinterfaces, you can specify a matching range of mapped names. Follow these guidelines for ranges:
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int0-int10If you enter gigabitethernet0/1.1-gigabitethernet0/1.5 happy1-sad5, for example, the command fails.
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gigabitethernet0/0.100-gigabitethernet0/0.199 int1-int100If you enter gigabitethernet0/0.100-gigabitethernet0/0.199 int1-int15, for example, the command fails.
Examples
The following example shows gigabitethernet0/1.100, gigabitethernet0/1.200, and gigabitethernet0/2.300 through gigabitethernet0/1.305 assigned to the context. The mapped names are int1 through int8.
hostname(config-ctx)# allocate-interface gigabitethernet0/1.100 int1hostname(config-ctx)# allocate-interface gigabitethernet0/1.200 int2hostname(config-ctx)# allocate-interface gigabitethernet0/2.300-gigabitethernet0/2.305 int3-int8Related Commands
allocate-ips
To allocate an IPS virtual sensor to a security context if you have the AIP SSM installed, use the allocate-ips command in context configuration mode. To remove a virtual sensor from a context, use the no form of this command.
allocate-ips sensor_name [mapped_name] [default]
no allocate-ips sensor_name [mapped_name] [default]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Context configuration
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Usage Guidelines
You can assign one or more IPS virtual sensors to each context. Then, when you configure the context to send traffic to the AIP SSM using the ips command, you can specify a sensor that is assigned to the context; you cannot specify a sensor that you did not assign to the context. If you do not assign any sensors to a context, then the default sensor configured on the AIP SSM is used. You can assign the same sensor to multiple contexts.
Note
Examples
The following example assigns sensor1 and sensor2 to context A, and sensor1 and sensor3 to context B. Both contexts map the sensor names to "ips1" and "ips2." In context A, sensor1 is set as the default sensor, but in context B, no default is set so the default that is configured on the AIP SSM is used.
hostname(config-ctx)# context Ahostname(config-ctx)# allocate-interface gigabitethernet0/0.100 int1hostname(config-ctx)# allocate-interface gigabitethernet0/0.102 int2hostname(config-ctx)# allocate-interface gigabitethernet0/0.110-gigabitethernet0/0.115 int3-int8hostname(config-ctx)# allocate-ips sensor1 ips1 defaulthostname(config-ctx)# allocate-ips sensor2 ips2hostname(config-ctx)# config-url ftp://user1:passw0rd@10.1.1.1/configlets/test.cfghostname(config-ctx)# member goldhostname(config-ctx)# context samplehostname(config-ctx)# allocate-interface gigabitethernet0/1.200 int1hostname(config-ctx)# allocate-interface gigabitethernet0/1.212 int2hostname(config-ctx)# allocate-interface gigabitethernet0/1.230-gigabitethernet0/1.235 int3-int8hostname(config-ctx)# allocate-ips sensor1 ips1hostname(config-ctx)# allocate-ips sensor3 ips2hostname(config-ctx)# config-url ftp://user1:passw0rd@10.1.1.1/configlets/sample.cfghostname(config-ctx)# member silverRelated Commands
anyconnect-essentials
To enable AnyConnect Essentials on the adaptive security appliance, use the anyconnect-essentials command from group policy webvpn configuration mode. To disable the use of AnyConnect Essentials and enable the premium AnyConnect client instead, use the no form of the command.
anyconnect-essentials
no anyconnect-essentials
Defaults
AnyConnect Essentials is enabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
webvpn configuration
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Command History
Usage Guidelines
Use this command to toggle between using the full AnyConnect SSL VPN client and the AnyConnect Essentials SSL VPN client, assuming that the full AnyConnect client license is installed. AnyConnect Essentials is a separately licensed SSL VPN client, entirely configured on the adaptive security appliance, that provides the premium AnyConnect capability, with the following exceptions:
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The AnyConnect Essentials client provides remote end users running Microsoft Windows Vista, Windows Mobile, Windows XP or Windows 2000, Linux, or Macintosh OS X, with the benefits of a Cisco SSL VPN client.
You enable or disable the AnyConnect Essentials license by using the anyconnect-essentials command, which is meaningful only after you have installed the AnyConnect Essentials license on the adaptive security appliance. Absent this license, this command returns the following error message:
ERROR: Command requires AnyConnect Essentials license
Note
When the AnyConnect Essentials license is enabled, AnyConnect clients use Essentials mode, and Clientless SSL VPN access is disabled. When the AnyConnect Essentials license is disabled, AnyConnect clients use the full AnyConnect SSL VPN Client license.
If you have active clientless SSL VPN connections, and you enable the AnyConnect Essentials license, then all connections are logged off and will need to be reestablished.
Examples
In the following example, the user enters webvpn configuration mode and enables the AnyConnect Essentials VPN client:
hostname(config)# webvpnhostname(config-webvpn)# anyconnect-essentialsapcf
To enable an Application Profile Customization Framework profile, use the apcf command in webvpn configuration mode. To disable a particular APCF script, use the no version of the command. To disable all APCF scripts, use the no version of the command without arguments.
apcf URL/filename.ext
no apcf [URL/filename.ext]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you enter the command:
Webvpn configuration
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Usage Guidelines
The apcf command enables the security appliance to handle non-standard web applications and web resources so that they render correctly over a WebVPN connection. An APCF profile contains a script that specifies when (pre, post), where (header, body, request, response), and what data to transform for a particular application.
You can use multiple APCF profiles on the adaptive security appliance. When you do, the adaptive security appliance applies each one of them in the order of oldest to newest.
We recommend that you use the apcf command only with the support of the Cisco TAC.
Examples
The following example shows how to enable an APCF named apcf1, located on flash memory at /apcf:
hostname(config)#webvpnhostname(config-webvpn)#apcf flash:/apcf/apcf1.xmlhostname(config-webvpn)#This example shows how to enable an APCF named apcf2.xml, located on an https server called myserver, port 1440 with the path being /apcf:
hostname(config)#webvpnhostname(config-webvpn)#apcf https://myserver:1440/apcf/apcf2.xmlhostname(config-webvpn)#Related Commands
appl-acl
To identify a previously configured web-type ACL to apply to a session, use the appl-acl command in dap webvpn configuration mode. To remove the attribute from the configuration, use the no version of the command; to remove all web-type ACLs, use the no version of the command without arguments.
appl-acl identifier
no appl-acl [identifier]
Syntax Description
Defaults
No default value or behaviors.
Command Modes
The following table shows the modes in which you can enter the command:
Dap webvpn configuration
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Command History
Usage Guidelines
To configure web-type ACLs, use the access-list_webtype command in global configuration mode.
Use the appl-acl command multiple times to apply more than one web-type ACL to the DAP policy.
Examples
The following example shows how to apply the previously configured web-type ACL called newacl to the dynamic access policy:
hostname (config)# config-dynamic-access-policy-recordFinancehostname(config-dynamic-access-policy-record)#webvpnhostname(config-dynamic-access-policy-record)#appl-acl newaclRelated Commands
dynamic-access-policy-record
Creates a DAP record.
access-list_webtype
Create web-type ACLs.
application-access
To customize the Application Access fiels of the WebVPN Home page that is displayed to authenticated WebVPN users, and the Application Access window that is launched when the user selects an application, use the application-access command from customization configuration mode. To remove the command from the configuration and cause the value to be inherited, use the no form of this command.
application-access {title | message | window} {text | style} value
no application-access {title | message | window} {text | style} value
Syntax Description
Defaults
The default title text of the Application Access field is "Application Access".
The default title style of the Application Access field is:
background-color:#99CCCC;color:black;font-weight:bold;text-transform:uppercase
The default message text of the Application Access field is "Start Application Client".
The default message style of the Application Access field is:
background-color:#99CCCC;color:maroon;font-size:smaller.
The default window text of the Application Access window is:
"Close this window when you finish using Application Access. Please wait for the table to be displayed before starting applications.".
The default window style of the Application Access window is:
background-color:#99CCCC;color:black;font-weight:bold.
Command Modes
The following table shows the modes in which you can enter the command:
Customization configuration
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Command History
Usage Guidelines
This command is accessed by using the webvpn command or the tunnel-group webvpn-attributes command.
The style option is expressed as any valid Cascading Style Sheet (CSS) parameters. Describing these parameters is beyond the scope of this document. For more information about CSS parameters, consult CSS specifications at the World Wide Web Consortium (W3C) website at www.w3.org. Appendix F of the CSS 2.1 Specification contains a convenient list of CSS parameters, and is available at www.w3.org/TR/CSS21/propidx.html.
The following tips can help you make the most common changes to the WebVPN pages—the page colors:
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Examples
The following example customizes the background color of the Application Access field to the RGB hex value 66FFFF, a shade of green:
F1-asa1(config)# webvpnF1-asa1(config-webvpn)# customization ciscoF1-asa1(config-webvpn-custom)# application-access title style background-color:#66FFFFRelated Commands
application-access hide-details
To hide application details that are displayed in the WebVPN Applications Access window, use the application-access hide-details command from customization configuration mode, which is accessed by using the webvpn command or the tunnel-group webvpn-attributes command. To remove the command from the configuration and cause the value to be inherited, use the no form of this command.
application-access hide-details {enable | disable}
no application-access [hide-details {enable | disable}]
Syntax Description
disable
Does not hide application details in the Application Access window.
enable
Hides application details in the Application Access window.
Defaults
The default is disabled. Application details appear in the Application Access window.
Command Modes
The following table shows the modes in which you can enter the command:
Customization configuration
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Examples
The following example disables the appearance of the application details:
hostname(config)# webvpnhostname(config-webvpn)# customization ciscohostname(config-webvpn-custom)# application-access hide-details disableRelated Commands
area
To create an OSPF area, use the area command in router configuration mode. To remove the area, use the no form of this command.
area area_id
no area area_id
Syntax Description
area_id
The ID of the area being created. You can specify the identifier as either a decimal number or an IP address. Valid decimal values range from 0 to 4294967295.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
The area that you create does not have any parameters set. Use the related area commands to set the area parameters.
Examples
The following example shows how to create an OSPF area with an area ID of 1:
hostname(config-router)# area 1hostname(config-router)#Related Commands
area authentication
To enable authentication for an OSPF area, use the area authentication command in router configuration mode.
To disable area authentication, use the no form of this command.
area area_id authentication [message-digest]
no area area_id authentication [message-digest]
Syntax Description
Defaults
Area authentication is disabled.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
If the specified OSPF area does not exist, it is created when this command is entered. Entering the area authentication command without the message-digest keyword enables simple password authentication. Including the message-digest keyword enables MD5 authentication.
Examples
The following example shows how to enable MD5 authentication for area 1:
hostname(config-router)# area 1 authentication message-digesthostname(config-router)#Related Commands
router ospf
Enters router configuration mode.
show running-config router
Displays the commands in the global router configuration.
area default-cost
To specify a cost for the default summary route sent into a stub or NSSA, use the area default-cost command in router configuration mode. To restore the default cost value, use the no form of this command.
area area_id default-cost cost
no area area_id default-cost
Syntax Description
Defaults
The default value of cost is 1.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
If the specified area has not been previously defined using the area command, this command creates the area with the specified parameters.
Examples
The following example show how to specify a default cost for summary route sent into a stub or NSSA:
hostname(config-router)# area 1 default-cost 5hostname(config-router)#Related Commands
area filter-list prefix
To filter prefixes advertised in Type 3 LSAs between OSPF areas of an ABR, use the area filter-list prefix command in router configuration mode. To change or cancel the filter, use the no form of this command.
area area_id filter-list prefix list_name {in | out}
no area area_id filter-list prefix list_name {in | out}
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
If the specified area has not been previously defined using the area command, this command creates the area with the specified parameters.
Only Type 3 LSAs can be filtered. If an ASBR is configured in the private network, then it will send Type 5 LSAs (describing private networks) which are flooded to the entire AS including the public areas.
Examples
The following example filters prefixes that are sent from all other areas to area 1:
hostname(config-router)# area 1 filter-list prefix-list AREA_1 inhostname(config-router)#Related Commands
router ospf
Enters router configuration mode.
show running-config router
Displays the commands in the global router configuration.
area nssa
To configure an area as an NSSA, use the area nssa command in router configuration mode. To remove the NSSA designation from the area, use the no form of this command.
area area_id nssa [no-redistribution] [default-information-originate [metric-type {1 | 2}] [metric value]] [no-summary]
no area area_id nssa [no-redistribution] [default-information-originate [metric-type {1 | 2}] [metric value]] [no-summary]
Syntax Description
Defaults
The defaults are as follows:
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Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
If the specified area has not been previously defined using the area command, this command creates the area with the specified parameters.
If you configure one option for an area, and later specify another option, both options are set. For example, entering the following two command separately results in a single command with both options set in the configuration:
area 1 nssa no-redistributionarea area_id nssa default-information-originateExamples
The following example shows how setting two options separately results in a single command in the configuration:
hostname(config-router)# area 1 nssa no-redistributionhostname(config-router)# area 1 nssa default-information-originatehostname(config-router)# exithostname(config-router)# show running-config router ospf 1router ospf 1area 1 nssa no-redistribution default-information-originateRelated Commands
area stub
Defines the area as a stub area.
router ospf
Enters router configuration mode.
show running-config router
Displays the commands in the global router configuration.
area range
To consolidate and summarize routes at an area boundary, use the area range command in router configuration mode. To disable this function, use the no form of this command.
area area_id range address mask [advertise | not-advertise]
no area area_id range address mask [advertise | not-advertise]
Syntax Description
Defaults
The address range status is set to advertise.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
If the specified area has not been previously defined using the area command, this command creates the area with the specified parameters.
The area range command is used only with ABRs. It is used to consolidate or summarize routes for an area. The result is that a single summary route is advertised to other areas by the ABR. Routing information is condensed at area boundaries. External to the area, a single route is advertised for each address range. This behavior is called route summarization. You can configure multiple area range commands for an area. Thus, OSPF can summarize addresses for many different sets of address ranges.
The no area area_id range ip_address netmask not-advertise command removes only the not-advertise optional keyword.
Examples
The following example specifies one summary route to be advertised by the ABR to other areas for all subnets on network 10.0.0.0 and for all hosts on network 192.168.110.0:
hostname(config-router)# area 10.0.0.0 range 10.0.0.0 255.0.0.0hostname(config-router)# area 0 range 192.168.110.0 255.255.255.0hostname(config-router)#Related Commands
router ospf
Enters router configuration mode.
show running-config router
Displays the commands in the global router configuration.
area stub
To define an area as a stub area, use the area stub command in router configuration mode. To remove the stub area function, use the no form of this command.
area area_id [no-summary]
no area area_id [no-summary]
Syntax Description
Defaults
The default behaviors are as follows:
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Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
The command is used only on an ABR attached to a stub or NSSA.
There are two stub area router configuration commands: the area stub and area default-cost commands. In all routers and access servers attached to the stub area, the area should be configured as a stub area using the area stub command. Use the area default-cost command only on an ABR attached to the stub area. The area default-cost command provides the metric for the summary default route generated by the ABR into the stub area.
Examples
The following example configures the specified area as a stub area:
hostname(config-router)# area 1 stubhostname(config-router)#Related Commands
area virtual-link
To define an OSPF virtual link, use the area virtual-link command in router configuration mode. To reset the options or remove the virtual link, use the no form of this command.
area area_id virtual-link router_id [authentication [message-digest | null]] [hello-interval seconds] [retransmit-interval seconds] [transmit-delay seconds] [dead-interval seconds [[authentication-key key] | [message-digest-key key_id md5 key]]
no area area_id virtual-link router_id [authentication [message-digest | null]] [hello-interval seconds] [retransmit-interval seconds] [transmit-delay seconds] [dead-interval seconds [[authentication-key key] | [message-digest-key key_id md5 key]]
Syntax Description
Defaults
The defaults are as follows:
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Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Usage Guidelines
In OSPF, all areas must be connected to a backbone area. If the connection to the backbone is lost, it can be repaired by establishing a virtual link.
The smaller the hello interval, the faster topological changes are detected, but more routing traffic ensues.
The setting of the retransmit interval should be conservative, or needless retransmissions occur. The value should be larger for serial lines and virtual links.
The transmit delay value should take into account the transmission and propagation delays for the interface.
The specified authentication key is used only when authentication is enabled for the backbone with the area area_id authentication command.
The two authentication schemes, simple text and MD5 authentication, are mutually exclusive. You can specify one or the other or neither. Any keywords and arguments you specify after authentication-key key or message-digest-key key_id md5 key are ignored. Therefore, specify any optional arguments before such a keyword-argument combination.
If the authentication type is not specified for an interface, the interface uses the authentication type specified for the area. If no authentication type has been specified for the area, the area default is null authentication.
Note
To remove an option from a virtual link, use the no form of the command with the option that you want removed. To remove the virtual link, use the no area area_id virtual-link command.
Examples
The following example establishes a virtual link with MD5 authentication:
hostname(config-router)# area 10.0.0.0 virtual-link 10.3.4.5 message-digest-key 3 md5 sa5721bk47Related Commands
arp
To add a static ARP entry to the ARP table, use the arp command in global configuration mode. To remove the static entry, use the no form of this command. A static ARP entry maps a MAC address to an IP address and identifies the interface through which the host is reached. Static ARP entries do not time out, and might help you solve a networking problem. In transparent firewall mode, the static ARP table is used with ARP inspection (see the arp-inspection command).
arp interface_name ip_address mac_address [alias]
no arp interface_name ip_address mac_address
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Usage Guidelines
Although hosts identify a packet destination by an IP address, the actual delivery of the packet on Ethernet relies on the Ethernet MAC address. When a router or host wants to deliver a packet on a directly connected network, it sends an ARP request asking for the MAC address associated with the IP address, and then delivers the packet to the MAC address according to the ARP response. The host or router keeps an ARP table so it does not have to send ARP requests for every packet it needs to deliver. The ARP table is dynamically updated whenever ARP responses are sent on the network, and if an entry is not used for a period of time, it times out. If an entry is incorrect (for example, the MAC address changes for a given IP address), the entry times out before it can be updated.
Note
Examples
The following example creates a static ARP entry for 10.1.1.1 with the MAC address 0009.7cbe.2100 on the outside interface:
hostname(config)# arp outside 10.1.1.1 0009.7cbe.2100Related Commands
arp timeout
To set the time before the adaptive security appliance rebuilds the ARP table, use the arp timeout command in global configuration mode. To restore the default timeout, use the no form of this command. Rebuilding the ARP table automatically updates new host information and removes old host information. You might want to reduce the timeout because the host information changes frequently.
arp timeout seconds
no arp timeout seconds
Syntax Description
Defaults
The default value is 14,400 seconds (4 hours).
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Examples
The following example changes the ARP timeout to 5,000 seconds:
hostname(config)# arp timeout 5000Related Commands
arp-inspection
To enable ARP inspection for transparent firewall mode, use the arp-inspection command in global configuration mode. To disable ARP inspection, use the no form of this command. ARP inspection checks all ARP packets against static ARP entries (see the arp command) and blocks mismatched packets. This feature prevents ARP spoofing.
arp-inspection interface_name enable [flood | no-flood]
no arp-inspection interface_name enable
Syntax Description
Defaults
By default, ARP inspection is disabled on all interfaces; all ARP packets are allowed through the adaptive security appliance. When you enable ARP inspection, the default is to flood non-matching ARP packets.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Usage Guidelines
Configure static ARP entries using the arp command before you enable ARP inspection.
When you enable ARP inspection, the adaptive security appliance compares the MAC address, IP address, and source interface in all ARP packets to static entries in the ARP table, and takes the following actions:
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Note
ARP inspection prevents malicious users from impersonating other hosts or routers (known as ARP spoofing). ARP spoofing can enable a "man-in-the-middle" attack. For example, a host sends an ARP request to the gateway router; the gateway router responds with the gateway router MAC address. The attacker, however, sends another ARP response to the host with the attacker MAC address instead of the router MAC address. The attacker can now intercept all the host traffic before forwarding it on to the router.
ARP inspection ensures that an attacker cannot send an ARP response with the attacker MAC address, so long as the correct MAC address and the associated IP address are in the static ARP table.
Note
Examples
The following example enables ARP inspection on the outside interface and sets the adaptive security appliance to drop any ARP packets that do not match the static ARP entry:
hostname(config)# arp outside 209.165.200.225 0009.7cbe.2100hostname(config)# arp-inspection outside enable no-floodRelated Commands
asdm disconnect
To terminate an active ASDM session, use the asdm disconnect command in privileged EXEC mode.
asdm disconnect session
Syntax Description
session
The session ID of the active ASDM session to be terminated. You can display the session IDs of all active ASDM sessions using the show asdm sessions command.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Privileged EXEC
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Command History
7.0(1)
This command was changed from the pdm disconnect command to the asdm disconnect command.
Usage Guidelines
Use the show asdm sessions command to display a list of active ASDM sessions and their associated session IDs. Use the asdm disconnect command to terminate a specific session.
When you terminate an ASDM session, any remaining active ASDM sessions keep their associated session ID. For example, if there are three active ASDM sessions with the session IDs of 0, 1, and 2, and you terminate session 1, the remaining active ASDM sessions keep the session IDs 0 and 2. The next new ASDM session in this example would be assigned a session ID of 1, and any new sessions after that would begin with the session ID 3.
Examples
The following example terminates an ASDM session with a session ID of 0. The show asdm sessions commands display the active ASDM sessions before and after the asdm disconnect command is entered.
hostname# show asdm sessions0 192.168.1.11 192.168.1.2hostname# asdm disconnect 0hostname# show asdm sessions1 192.168.1.2Related Commands
show asdm sessions
Displays a list of active ASDM sessions and their associated session ID.
asdm disconnect log_session
To terminate an active ASDM logging session, use the asdm disconnect log_session command in privileged EXEC mode.
asdm disconnect log_session session
Syntax Description
session
The session ID of the active ASDM logging session to be terminated. You can display the session IDs of all active ASDM sessions using the show asdm log_sessions command.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Privileged EXEC
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Usage Guidelines
Use the show asdm log_sessions command to display a list of active ASDM logging sessions and their associated session IDs. Use the asdm disconnect log_session command to terminate a specific logging session.
Each active ASDM session has one or more associated ASDM logging sessions. ASDM uses the logging session to retrieve syslog messages from the adaptive security appliance. Terminating a log session may have an adverse effect on the active ASDM session. To terminate an unwanted ASDM session, use the asdm disconnect command.
Note
When you terminate an ASDM logging session, any remaining active ASDM logging sessions keep their associated session ID. For example, if there are three active ASDM logging sessions with the session IDs of 0, 1, and 2, and you terminate session 1, the remaining active ASDM logging sessions keep the session IDs 0 and 2. The next new ASDM logging session in this example would be assigned a session ID of 1, and any new logging sessions after that would begin with the session ID 3.
Examples
The following example terminates an ASDM session with a session ID of 0. The show asdm log_sessions commands display the active ASDM sessions before and after the asdm disconnect log_sessions command is entered.
hostname# show asdm log_sessions0 192.168.1.11 192.168.1.2hostname# asdm disconnect 0hostname# show asdm log_sessions1 192.168.1.2Related Commands
show asdm log_sessions
Displays a list of active ASDM logging sessions and their associated session ID.
asdm history enable
To enable ASDM history tracking, use the asdm history enable command in global configuration mode. To disable ASDM history tracking, use the no form of this command.
asdm history enable
no asdm history enable
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
7.0(1)
This command was changed from the pdm history enable command to the asdm history enable command.
Usage Guidelines
The information obtained by enabling ASDM history tracking is stored in the ASDM history buffer. You can view this information using the show asdm history command. The history information is used by ASDM for device monitoring.
Examples
The following example enables ASDM history tracking:
hostname(config)# asdm history enablehostname(config)#Related Commands
asdm image
To specify the location of the ASDM software image in Flash memory, use the asdm image command in global configuration mode. To remove the image location, use the no form of this command.
asdm image url
no asdm image [url]
Syntax Description
Defaults
If you do not include this command in your startup configuration, the adaptive security appliance uses the first ASDM image it finds at startup. It searches the root directory of internal Flash memory and then external Flash memory. The adaptive security appliance then inserts the asdm image command into the running configuration if it discovered an image.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Usage Guidelines
You can store more than one ASDM software image in Flash memory. If you enter the asdm image command to specify a new ASDM software image while there are active ASDM sessions, the new command does not disrupt the active sessions; active ASDM sessions continue to use the ASDM software image they started with. New ASDM sessions use the new software image. If you enter the no asdm image command, the command is removed from the configuration. However, you can still access ASDM from the adaptive security appliance using the last-configured image location.
If you do not include this command in your startup configuration, the adaptive security appliance uses the first ASDM image it finds at startup. It searches the root directory of internal Flash memory and then external Flash memory. The adaptive security appliance then inserts the asdm image command into the running configuration if it discovered an image. Be sure to save the running configuration to the startup configuration using the write memory command. If you do not save the asdm image command to the startup configuration, every time you reboot, the adaptive security appliance searches for an ASDM image and inserts the asdm image command into your running configuration. If you are using Auto Update, the automatic addition of this command at startup causes the configuration on the adaptive security appliance not to match the configuration on the Auto Update Server. This mismatch causes the adaptive security appliance to download the configuration from the Auto Update Server. To avoid unnecessary Auto Update activity, save the asdm image command to the startup configuration.
Examples
The following example sets the ASDM image to asdm.bin:
hostname(config)# asdm image flash:/asdm.binhostname(config)#Related Commands
show asdm image
Displays the current ASDM image file.
boot
Sets the software image and startup configuration files.
asdm location
Caution
asdm location ip_addr netmask if_name
asdm location ipv6_addr/prefix if_name
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
•
•
•
•
—
Command History
7.0(1)
This command was changed from the pdm location command to the asdm location command.
Usage Guidelines
Do not manually configure or remove this command.
asp load-balance per-packet
For multi-core ASAs, to change the load balancing behavior, use the asp load-balance per-packet command in global configuration mode. The default behavior is to allow only one core to receive packets from an interface receive ring at a time. The asp load-balance per-packet command changes this behavior to allow multiple cores to receive packets from an interface receive ring and work on them independently. The default behavior is optimized for scenarios where packets are received uniformly on all interface rings. The per-packet behavior is optimized for scenarios where traffic is asymmetrically distributed on interface receive rings. To restore the default load-balancing mechanism, use the no form of this command.
asp load-balance per-packet
no asp load-balance per-packet
Syntax Description
This command has no arguments or keywords.
Command Default
By default, the load-balancing mechanism favors many interfaces.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
•
•
•
—
•
Command History
Usage Guidelines
Performance on the adaptive security appliances with multiple cores can vary depending on the number of processors, the number of interface receive rings, and the nature of the traffic passing through. Using the asp load-balance per-packet command allows multiple cores to work simultaneously on packets received from a single interface receive ring. This command provides for parallel processing if the packets received are spread over many independent connections. Note that this command can cause additional queuing overhead for packets from the same and related connections because these packets are processed by one core.
If the system drops packets, and show cpu is far less than 100%, then this command may help your throughput if the packets belong to many unrelated connections. The CPU usage is a good indicator as to how many cores are effectively being used. For example on the ASA 5580-40 which includes 8 cores, if two cores are used, then show cpu will be 25%; four cores will be 50%; and six cores will be 75%.
See also the show asp load-balance command.
Examples
The following example enables per-packet load balancing:
hostname(config)# asp load-balance per-packetRelated Commands
asr-group
To specify an asymmetrical routing interface group ID, use the asr-group command in interface configuration mode. To remove the ID, use the no form of this command.
asr-group group_id
no asr-group group_id
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Interface configuration
•
•
—
•
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Command History
Usage Guidelines
When Active/Active failover is enabled, you may encounter situations where load balancing causes the return traffic for outbound connections to be routed through an active context on the peer unit, where the context for the outbound connection is in the standby group.
The asr-group command causes incoming packets to be re-classified with the interface of the same asr-group if a flow with the incoming interface cannot be found. If re-classification finds a flow with another interface, and the associated context is in standby state, then the packet is forwarded to the active unit for processing.
Stateful Failover must be enabled for this command to take effect.
You can view ASR statistics using the show interface detail command. These statistics include the number of ASR packets sent, received, and dropped on an interface.
Note
Examples
The following example assigns the selected interfaces to the asymmetric routing group 1.
Context ctx1 configuration:
hostname/ctx1(config)# interface Ethernet2hostname/ctx1(config-if)# nameif outsidehostname/ctx1(config-if)# ip address 192.168.1.11 255.255.255.0 standby 192.168.1.21hostname/ctx1(config-if)# asr-group 1Context ctx2 configuration:
hostname/ctx2(config)# interface Ethernet3hostname/ctx2(config-if)# nameif outsidehostname/ctx2(config-if)# ip address 192.168.1.31 255.255.255.0 standby 192.168.1.41hostname/ctx2(config-if)# asr-group 1Related Commands
interface
Enters interface configuration mode.
show interface
Displays interface statistics.
assertion-consumer-url
To identify the URL that the security device accesses to contact the assertion consumer service, use the assertion-consumer-url command in the webvpn configuration mode for that specific SAML-type SSO server.
To remove the URL from the assertion, use the no form of this command.
assertion-consumer-url url
no assertion-consumer-url [url]
Syntax Description
url
Specifies the URL of the assertion consumer service used by the SAML-type SSO server. The URL must start with either http:// or https: and must be less than 255 alphanumeric characters.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Webvpn configuration
•
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•
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—
Command History
Usage Guidelines
Single sign-on support, available only for WebVPN, lets users access different secure services on different servers without entering a username and password more than once. The adaptive security appliance currently supports the SAML POST-type SSO server and the SiteMinder-type of SSO server.
This command applies only to SAML-type SSO Servers.
If the URL begins with HTTPS, the requirement is to install the root certificate for the assertion consumer service's SSL certificate.
The following example specifies the assertion-consumer-url for a SAML-type SSO server:
hostname(config-webvpn)# sso server myhostname type saml-v1.1-posthostname(config-webvpn-sso-saml# assertion-consumer-url https://saml-server/postconsumerhostname(config-webvpn-sso-saml#Related Commands
attribute
To specify attribute value pairs that the adaptive security appliance writes to the DAP attribute database, enter the attribute command in dap test attributes mode. Use this command multiple times to enter multiple attribute value pairs.
attribute name value
Syntax Description
Command Default
No default value or behaviors.
Command Modes
The following table shows the modes in which you can enter the command:
DAP attributes configuration mode
•
•
•
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—
Command History
Usage Guidelines
Normally the adaptive security appliance retrieves user authorization attributes from the AAA server and retrieves endpoint attributes from Cisco Secure Desktop, Host Scan, CNA or NAC. For the test command, you specify the user authorization and endpoint attributes in this attributes mode. The adaptive security appliance writes them to an attribute database that the DAP subsystem references when evaluating the AAA selection attributes and endpoint select attributes for a DAP record.
Examples
The following example assumes that adaptive security appliance selects two DAP records if the authenticated user is a member of the SAP group and has anti-virus software installed on the endpoint system. The Endpoint ID for the anti-virus software endpoint rule is nav.
The DAP records have the following policy attributes:
action = continue
action = continue
port-forward = enable hostlist1
url-list = links2
url-entry = enable
hostname #test dynamic-access-policy attributeshostname(config-dap-test-attr)#attribute aaa.ldap.memberof SAPhostname(config-dap-test-attr)#attribute endpoint.av.nav.exists truehostname(config-dap-test-attr)#exithostname #test dynamic-access-policy executePolicy Attributes:action = continueport-forward = enable hostlist1url-list = links2url-entry = enablehostname #Related Commands
l
auth-cookie-name
To specify the name of an authentication cookie, use the auth-cookie-name command in aaa-server host configuration mode. This is an SSO with HTTP Forms command.
auth-cookie-name
Syntax Description
Syntax DescriptionSyntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Aaa-server host configuration
•
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•
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Command History
Usage Guidelines
The WebVPN server of the adaptive security appliance uses an HTTP POST request to submit a single sign-on authentication request to an SSO server. If authentication succeeds, the authenticating web server passes back an authentication cookie to the client browser. The client browser then authenticates to other web servers in the SSO domain by presenting the authentication cookie. The auth-cookie-name command configures name of the authentication cookie to be used for SSO by the adaptive security appliance.
A typical authentication cookie format is Set-Cookie: <cookie name>=<cookie value> [;<cookie attributes>]. In the following authentication cookie example, SMSESSION is the name that would be configured with the auth-cookie-name command:
Set-Cookie:SMSESSION=yN4Yp5hHVNDgs4FT8dn7+Rwev41hsE49XlKc+1twie0gqnjbhkTkUnR8XWP3hvDH6PZPbHIHtWLDKTa8 ngDB/lbYTjIxrbDx8WPWwaG3CxVa3adOxHFR8yjD55GevK3ZF4ujgU1lhO6fta0dSSOSepWvnsCb7IFxCw+MGiw0o8 8uHa2t4l+SillqfJvcpuXfiIAO06D/dapWriHjNoi4llJOgCst33wEhxFxcWy2UWxs4EZSjsI5GyBnefSQTPVfma5d c/emWor9vWr0HnTQaHP5rg5dTNqunkDEdMIHfbeP3F90cZejVzihM6igiS6P/CEJAjE;Domain=.example.com;Pa th=/Examples
The following example specifies the authentication cookie name of SMSESSION for the authentication cookie received from a web server named example.com:
hostname(config)# aaa-server testgrp1 host example.comhostname(config-aaa-server-host)# auth-cookie-name SMSESSIONhostname(config-aaa-server-host)#Related Commands
authenticated-session-username
To specify which authentication username to associate with the session when double authentication is enabled, use the authenticated-session-username command in tunnel-group general-attributes mode. To remove the attribute from the configuration, use the no form of this command.
authenticated-session-username {primary | secondary}
no authenticated-session-username
Syntax Description
primary
(Default) Use the username from the primary authentication server.
clientless
Use the username from the secondary authentication server.
Defaults
The default value is primary.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group general-attributes configuration
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•
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Command History
Usage Guidelines
This command is meaningful only when double authentication is enabled. The authenticated-session-username command selects the authentication server from which the adaptive security appliance extracts the username to associate with the session.
Examples
The following example, entered in global configuration mode, creates an IPSec remote access tunnel group named remotegrp and specifies the use of the username from the secondary authentication server for the connection:
hostname(config)# tunnel-group remotegrp type ipsec_rahostname(config)# tunnel-group remotegrp general-attributeshostname(config-tunnel-webvpn)# authenticated-session-username secondaryhostname(config-tunnel-webvpn)#Related Commands
authentication-attr-from-server
To specify which authentication server authorization attributes to apply to the connection when double authentication is enabled, use the authentication-attr-from-server command in tunnel-group general-attributes mode. To remove the attribute from the configuration, use the no form of this command.
authentication-attr-from-server {primary | secondary}
no authentication-attr-from-server
Syntax Description
primary
(Default) Use the primary authentication server.
secondary
Use the secondary authentication server.
Defaults
The default value is primary.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group general-attributes configuration
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•
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—
Command History
Usage Guidelines
This command is meaningful only when double authentication is enabled. The authentication-attr-from-server command selects the authentication server from which the adaptive security appliance extracts the authorization attributes to be applied to the connection.
Examples
The following example, entered in global configuration mode, creates an IPSec remote access tunnel group named remotegrp and specifies that the authorization attributes to be applied to the connection must come from the secondary authentication server:
hostname(config)# tunnel-group remotegrp type ipsec_rahostname(config)# tunnel-group remotegrp general-attributeshostname(config-tunnel-webvpn)# authentication-attr-from-server secondaryhostname(config-tunnel-webvpn)#Related Commands
authentication-certificate
To request a certificate from a WebVPN client establing a connection, use the authentication-certificate command in webvpn configuration mode. To cancel the requirement for a client certificate, use the no form of this command.
authentication-certificate interface-name
no authentication-certificate [interface-name]
Syntax Description
interface-name
The name of the interface used to establish the connection. Available interfaces names are:
•
•
Defaults
•
•
Command Modes
The following table shows the modes in which you can enter the command:
Webvpn configuration
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•
—
—
Command History
Usage Guidelines
For this command to take effect, WebVPN must already be enabled on the corresponding interface. An interface is configured and named with the interface, IP address, and nameif commands.
This command applies only to WebVPN client connections, however the ability to specify client certificate authentication for management connections with the http authentication-certificate command is available on all platforms, including the platforms that do not support WebVPN.
The adaptive security appliance validates certificates against the PKI trustpoints. If a certificate does not pass validation, then one of the following actions occurs:
Examples
The following example configures certificate authentication for WebVPN user connections on the outside interface:
hostname(config)# webvpnhostname(config-webvpn)# authentication-certificate outsidehostname(config-webvpn)#Related Commands
authentication-exclude
To enable end users to browse to configured links without logging in to clientless SSL VPN,, enter the authentication-exclude command in webvpn mode. Use this command multiple times to permit acccess to multiple sites.
authentication-exclude url-fnmatch
Syntax Description
Command Default
Disabled.
Command Modes
The following table shows the modes in which you can enter the command:
Webvpn configuration mode
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•
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Command History
Usage Guidelines
This feature is useful when you require that some internal resources be available for public use via SSL VPN.
You need to distribute information about the links to end users in an SSL VPN-mangled form, for example, by browsing to these resources using SSL VPN and copying the resulting URLS into the information about links that you distribute.
Examples
The following example shows how to exempt two sites from authentication requirements:
hostname(config)#webvpnhostname(config-webvpn)#authentication-exclude http://www.site.com/public/*hostname(config-webvpn)#authentication-exclude *announcement.html
hostname(config)#authentication
To configure the authentication method for WebVPN and e-mail proxies, use the authentication command in various modes. To restore the default method, use the no form of this command. The adaptive security appliance authenticates users to verify their identity.
authentication {[aaa] [certificate] [mailhost] [piggyback]}
no authentication [aaa] [certificate] [mailhost] [piggyback]
Syntax Description
Defaults
The following table shows the default authentication methods for WebVPN and e-mail proxies:
IMAP4S
Mailhost (required)
POP3S
Mailhost (required)
SMTPS
AAA
WebVPN
AAA
Command Modes
The following table shows the modes in which you can enter the command:
Command History
Usage Guidelines
At least one authentication method is required. For WebVPN, for example, you can specify AAA authentication, certificate authentication, or both. You can specify these in either order.
WebVPN certificate authentication requires that HTTPS user certificates be required for the respective interfaces. That is, for this selection to be operational, before you can specify certificate authentication, you must have specified the interface in an authentication-certificate command.
If you enter this command in webvpn configuration mode, it is transformed to the same command in tunnel-group webvpn-attributes configuration mode.
For WebVPN, you can require both AAA and certificate authentication, in which case users must provide both a certificate and a username and password. For e-mail proxy authentication, you can require more than one authentication method. Specifying the command again overwrites the current configuration.
Examples
The following example shows how to require that WebVPN users provide certificates for authentication:
hostname(config)# webvpnhostname(config-webvpn)# authentication certificateRelated Commands
authentication eap-proxy
For L2TP over IPSec connections, to enable EAP and permit the security appliance to proxy the PPP authentication process to an external RADIUS authentication server, use the authentication eap-proxy command in tunnel-group ppp-attributes configuration mode. To return the command to its default setting (permit CHAP and MS-CHAP), use the no form of this command.
authentication eap-proxy
no authentication eap-proxy
Syntax Description
This command has no keywords or arguments.
Defaults
By default, EAP is not a permitted authentication protocol.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group ppp-attributes configuration
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•
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Command History
Usage Guidelines
You can apply this attribute only to the L2TP/IPSec tunnel-group type.
Examples
The following example entered in config-ppp configuration mode, permits EAP for PPP connections for the tunnel group named pppremotegrp:
hostname(config)# tunnel-group pppremotegrp type IPSec/IPSechostname(config)# tunnel-group pppremotegrp ppp-attributeshostname(config-ppp)# authentication eaphostname(config-ppp)#Related Commands
authentication key eigrp
To enable authentication of EIGRP packets and specify the authentication key, use the authentication key eigrp command in interface configuration mode. To disable EIGRP authentication, use the no form of this command.
authentication key eigrp as-number key key-id key-id
no authentication key eigrp as-number
Syntax Description
Defaults
EIGRP authentication is disabled.
Command Modes
The following table shows the modes in which you can enter the command:
Interface configuration
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•
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Command History
Usage Guidelines
You must configure both the authentication mode eigrp and the authentication key eigrp commands on an interface to enable EIGRP message authentication. Use the show running-config interface command to view the authentication commands configured on an interface.
Examples
The following examples shows EIGRP authentication configured on interface GigabitEthernet0/3:
hostname(config)# interface Gigabit0/3hostname(config-if)# authentication mode eigrp md5hostname(config-if)# authentication key eigrp 100 thisismykey key_id 5Related Commands
authentication mode eigrp
Specifies the type of authentication used for EIGRP authentication.
authentication mode eigrp
To specify the type of authentication used for EIGRP authentication, use the authentication mode eigrp command in interface configuration mode. To restore the default authentication method, use the no form of this command.
authentication mode eigrp as-num md5
no authentication mode eigrp as-num md5
Syntax Description
as-num
The autonomous system number of the EIGRP routing process.
md5
Uses MD5 for EIGRP message authentication.
Defaults
No authentication is provided by default.
Command Modes
The following table shows the modes in which you can enter the command:
Interface configuration
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•
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Command History
Usage Guidelines
You must configure both the authentication mode eigrp and the authentication key eigrp commands on an interface to enable EIGRP message authentication. Use the show running-config interface command to view the authentication commands configured on an interface.
Examples
The following examples shows EIGRP authentication configured on interface GigabitEthernet0/3:
hostname(config)# interface GigabitEthernet0/3hostname(config-if)# authentication mode eigrp 100 md5hostname(config-if)# authentication key eigrp 100 thisismykey key_id 5Related Commands
authentication key eigrp
Enables authentication of EIGRP packets and specifies the authentication key.
authentication ms-chap-v1
For L2TP over IPSec connections, to enable Microsoft CHAP, Version 1 authentication for PPP, use the authentication ms-chap-v1 command in tunnel-group ppp-attributes configuration mode. This protocol is similar to CHAP but more secure in that the server stores and compares only encrypted passwords rather than cleartext passwords as in CHAP. This protocol also generates a key for data encryption by MPPE.
To return the command to its default setting (permit CHAP and MS-CHAP), use the no form of this command.
To disable Microsoft CHAP, Version 1, use the no form of this command.
authentication ms-chap-v1
no authentication ms-chap-v1
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group ppp-attributes configuration
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•
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Command History
Usage Guidelines
You can apply this attribute only to the L2TP/IPSec tunnel-group type.
Related Commands
authentication ms-chap-v2
For L2TP over IPSec connections, to enable Microsoft CHAP, Version 2 authentication for PPP, use the authentication ms-chap-v1 command in tunnel-group ppp-attributes configuration mode. This protocol is similar to CHAP but more secure in that the server stores and compares only encrypted passwords rather than cleartext passwords as in CHAP. This protocol also generates a key for data encryption by MPPE. To return the command to its default setting (permit CHAP and MS-CHAP), use the no form of this command.
authentication ms-chap-v2
no authentication ms-chap-v2
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group ppp-attributes configuration
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•
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Command History
Usage Guidelines
You can apply this attribute only to the L2TP/IPSec tunnel-group type.
Related Commands
authentication pap
For L2TP over IPSec connections, to permit PAP authentiation for PPP, use the authentication pap command in tunnel-group ppp-attributes configuration mode. This protocol passes cleartext username and password during authentication and is not secure.
To return the command to its default setting (permit CHAP and MS-CHAP), use the no form of this command.
authentication pap
no authentication pap
Syntax Description
This command has no keywords or arguments.
Defaults
By default, PAP is not a permitted authentication protocol.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group ppp-attributes configuration
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•
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—
Command History
Usage Guidelines
You can apply this attribute only to the L2TP/IPSec tunnel-group type.
Examples
The following example entered in config-ppp configuration mode, permits PAP for PPP connections for a tunnel group named pppremotegrps:
hostname(config)# tunnel-group pppremotegrp type IPSec/IPSechostname(config)# tunnel-group pppremotegrp ppp-attributeshostname(config-ppp)# authentication paphostname(config-ppp)#Related Commands
authentication-certificate
To request a certificate from a WebVPN client establing a connection, use the authentication-certificate command in webvpn configuration mode. To cancel the requirement for a client certificate, use the no form of this command.
authentication-certificate interface-name
no authentication-certificate [interface-name]
Syntax Description
interface-name
The name of the interface used to establish the connection. Available interfaces names are:
•
•
Defaults
•
•
Command Modes
The following table shows the modes in which you can enter the command:
Webvpn configuration
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•
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Command History
Usage Guidelines
For this command to take effect, WebVPN must already be enabled on the corresponding interface. An interface is configured and named with the interface, IP address, and nameif commands.
This command applies only to WebVPN client connections, however the ability to specify client certificate authentication for management connections with the http authentication-certificate command is available on all platforms, including the platforms that do not support WebVPN.
The adaptive security appliance validates certificates against the PKI trustpoints. If a certificate does not pass validation, then one of the following actions occurs:
Examples
The following example configures certificate authentication for WebVPN user connections on the outside interface:
hostname(config)# webvpnhostname(config-webvpn)# authentication-certificate outsidehostname(config-webvpn)#Related Commands
authentication-port
To specify the port number used for RADIUS authentication for this host, use the authentication-port command in aaa-server configuration host configuration mode. To remove the authentication port specification, use the no form of this command. This command specifies the destination TCP/UDP port number of the remote RADIUS server hosts to which you want to assign authentication functions:
authentication-port port
no authentication-port
Syntax Description
Defaults
By default, the device listens for RADIUS on port 1645 (in compliance with RFC 2058). If the port is not specified, the RADIUS authentication default port number (1645) is used.
Command Modes
The following table shows the modes in which you can enter the command:
Aaa-server host configuration
•
•
•
•
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Command History
7.0(1)
Semantic change to the command to support the specification of server ports on a per-host basis for server groups that contain RADIUS servers.
Usage Guidelines
If your RADIUS authentication server uses a port other than 1645, you must configure the adaptive security appliance for the appropriate port prior to starting the RADIUS service with the aaa-server command.
This command is valid only for server groups that are configured for RADIUS.
Examples
The following example configures a RADIUS AAA server named "srvgrp1" on host "1.2.3.4", sets a timeout of 9 seconds, sets a retry-interval of 7 seconds, and configures authentication port 1650.
hostname(config)#aaa-server svrgrp1 protocol radiushostname(config-aaa-server-group)#aaa-server svrgrp1 host 1.2.3.4hostname(config-aaa-server-host)#timeout 9hostname(config-aaa-server-host)#retry-interval 7hostname(config-aaa-server-host)#authentication-port 1650hostname(config-aaa-server-host)#exithostname(config)#Related Commands
authentication-server-group (imap4s, pop3s, smtps)
To specify the set of authentication servers to use for e-mail proxies, use the authentication-server-group command in various modes. To remove authentication servers from the configuration, use the no form of this command. The adaptive security appliance authenticates users to verify their identity.
authentication-server-group group_tag
no authentication-server-group
Syntax Description
group_tag
Identifies the previously configured authentication server or group of servers. Use the aaa-server command to configure authentication servers.
Defaults
No authentication servers are configured by default.
Command Modes
The following table shows the modes in which you can enter the command:
Imap4s configuration
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•
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Pop3s configuration
•
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•
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Smtps configuration
•
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•
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Command History
Usage Guidelines
If you configure AAA authentication, you must configure this attribute as well. Otherwise, authentication always fails.
Examples
The next example shows how to configure IMAP4S e-mail proxy to use the set of authentication servers named "IMAP4SSVRS":
hostname(config)#imap4shostname(config-imap4s)# authentication-server-group IMAP4SSVRSRelated Commands
aaa-server host
Configures authentication, authorization, and accounting servers.
authentication-server-group (tunnel-group general-attributes)
To specify the AAA server group to use for user authentication for a tunnel group, use the authentication-server-group command in tunnel-group general-attributes configuration mode. To return this attribute to the default, use the no form of this command.
authentication-server-group [(interface_name)] server_group [LOCAL]
no authentication-server-group [(interface_name)] server_group
Syntax Description
Defaults
The default setting for the server-group in this command is LOCAL.
Command Modes
The following table shows the modes in which you can enter the command:
Tunnel-group general-attributes configuration
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•
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—
Command History
Usage Guidelines
You can apply this attribute to all tunnel-group types.
Use the aaa-server command to configure authentication servers and the aaa-server-host command to add servers to a previously configured AAA server group.
Examples
The following example entered in config-general configuration mode, configures an authentication server group named aaa-server456 for an IPSec remote-access tunnel group named remotegrp:
hostname(config)# tunnel-group remotegrp type ipsec-rahostname(config)# tunnel-group remotegrp general-attributeshostname(config-tunnel-general)# authentication-server-group aaa-server456hostname(config-tunnel-general)#Related Commands
authorization-required
To require users to authorize successfully prior to connecting, use the authorization-required command in various modes. To remove the attribute from the configuration, use the no version of this command.
authorization-required
no authorization-required
Syntax Description
This command has no arguments or keywords.
Defaults
Authorization-required is disabled by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command History
Examples
The following example, entered in global configuration mode, requires authorization based on the complete DN for users connecting through a remote-access tunnel group named remotegrp. The first command configures the tunnel-group type as ipsec_ra (IPSec remote access) for the remote group named remotegrp. The second command enters tunnel-group general-attributes configuration mode for the specified tunnel group, and the last command specifies that authorization is required for the named tunnel group:
hostname(config)# tunnel-group remotegrp type ipsec_rahostname(config)# tunnel-group remotegrp general-attributeshostname(config-tunnel-general)# authorization-requiredhostname(config-tunnel-general)#Related Commands
authorization-server-group
To specify the set of authorization servers to use with WebVPN and e-mail proxies, use the authorization-server-group command in various modes. To remove authorization servers from the configuration, use the no form of this command. The adaptive security appliance uses authorization to verify the level of access to network resources that users are permitted.
authorization-server-group group_tag
no authorization-server-group
Syntax Description
group_tag
Identifies the previously configured authorization server or group of servers. Use the aaa-server command to configure authorization servers.
Defaults
No authorization servers are configured by default.
Command Modes
The following table shows the modes in which you can enter the command:
Command History
7.0(1)
This command was introduced.
7.1(1)
This command was deprecated in webvpn configuration mode and moved to tunnel-group general-attributes configuration mode.
Usage Guidelines
If you enter this command in webvpn configuration mode, it is transformed to the same command in tunnel-group general-attributes mode.
When VPN Authorization is defined as LOCAL, the attributes configured in the default group policy DfltGrpPolicy are enforced.
Examples
The following example shows how to configure POP3S e-mail proxy to use the set of authorization servers named "POP3Spermit":
hostname(config)#pop3shostname(config-pop3s)# authorization-server-group POP3SpermitThe following example entered in config-general configuration mode, configures an authorization server group named "aaa-server78" for an IPSec remote-access tunnel group named "remotegrp":
hostname(config)# tunnel-group remotegrp type ipsec-rahostname(config)# tunnel-group remotegrp general-attributeshostname(config-tunnel-general)# authorization-server-group aaa-server78hostname(config-tunnel-general)#Related Commands
auth-prompt
To specify or change the AAA challenge text for through-the-adaptive security appliance user sessions, use the auth-prompt command in global configuration mode. To remove the authentication challenge text, use the no form of this command.
auth-prompt prompt [prompt | accept | reject] string
no auth-prompt prompt [ prompt | accept | reject]
Syntax Description
Defaults
If you do not specify an authentication prompt:
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hostname(config-aaa-server-group)#,•
hostname(config-aaa-server-host)#•
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Usage Guidelines
The auth-prompt command lets you specify the AAA challenge text for HTTP, FTP, and Telnet access through the adaptive security appliance when requiring user authentication from TACACS+ or RADIUS servers. This text is primarily for cosmetic purposes and displays above the username and password prompts that users view when logging in.
If the user authentication occurs from Telnet, you can use the accept and reject options to display different status prompts to indicate that the authentication attempt is accepted or rejected by the AAA server.
If the AAA server authenticates the user, the adaptive security appliance displays the auth-prompt accept text, if specified, to the user; otherwise it displays the reject text, if specified. Authentication of HTTP and FTP sessions displays only the challenge text at the prompt. The accept and reject text are not displayed.
Note
Examples
The following example sets the authentication prompt to the string "Please enter your username and password.":
hostname(config)# auth-prompt prompt Please enter your username and passwordAfter this string is added to the configuration, users see the following:
Please enter your username and passwordUser Name:Password:For Telnet users, you can also provide separate messages to display when the adaptive security appliance accepts or rejects the authentication attempt; for example:
hostname(config)# auth-prompt reject Authentication failed. Try again.hostname(config)# auth-prompt accept Authentication succeeded.The following example sets the authentication prompt for a successful authentication to the string, "You're OK."
hostname(config)# auth-prompt accept You're OK.After successfully authenticating, the user sees the following message:
You're OK.Related Commands
auto-signon
To configure the adaptive security appliance to automatically pass user login credentials for Clientless SSL VPN connections on to internal servers, use the auto-signon command in any of three modes: webvpn configuration, webvpn group configuration, or webvpn username configuration mode. The authentication method can be NTLM (includes NTLMv1 and NTLMv2), HTTP Basic authentication, or both. To disable auto-signon to a particular server, use the no form of this command with the original ip, uri, and auth-type arguments. To disable auto-signon to all servers, use the no form of this command without arguments.
auto-signon allow {ip ip-address ip-mask | uri resource-mask} auth-type {basic | ftp | ntlm | all}
no auto-signon [allow {ip ip-address ip-mask | uri resource-mask} auth-type {basic | ftp | ntlm | all}]
Syntax Description
Syntax DescriptionSyntax Description
Defaults
By default, this feature is disabled for all servers.
Command Modes
The following table shows the modes in which you can enter the command:
Command History
7.1(1)
This command was introduced.
8.0(1)
NTLMv2 support was added. The ntlm keyword includes both NTLMv1 and NTLMv2.
Usage Guidelines
The auto-signon command is a single sign-on method for Clientless SSL VPN users. It passes the login credentials (username and password) to internal servers for authentication using NTLM authentication, HTTP Basic authentication, or both. Multiple auto-signon commands can be entered and are processed according to the input order (early commands take precedence).
You can use the auto-signon feature in three modes: webvpn configuration group-policy, webvpn configuration, or webvpn username configuration mode. The typical precedence behavior applies, where username supersedes group, and group supersedes global. The mode you choose depends upon the desired scope of authentication:
Webvpn configuration
All WebVPN users globally
Webvpn group configuration
A subset of WebVPN users defined by a group policy
Webvpn username configuration
An individual WebVPN user
Examples
The following example commands configure auto-signon for all Clientless users, using NTLM authentication, to servers with IP addresses ranging from 10.1.1.0 to 10.1.1.255:
hostname(config)# webvpnhostname(config-webvpn)# auto-signon allow ip 10.1.1.0 255.255.255.0 auth-type ntlmThe following example commands configure auto-signon for all Clientless users, using HTTP Basic authentication, to servers defined by the URI mask https://*.example.com/*:
hostname(config)# webvpnhostname(config-webvpn)# auto-signon allow uri https://*.example.com/* auth-type basicThe following example commands configure auto-signon for Clientless users ExamplePolicy group policy, using either HTTP Basic or NTLM authentication, to servers defined by the URI mask https://*.example.com/*:hostname(config)# group-policy ExamplePolicy attributeshostname(config-group-policy)# webvpnhostname(config-group-webvpn)# auto-signon allow uri https://*.example.com/* auth-type allThe following example commands configure auto-signon for a user named Anyuser, using HTTP Basic authentication, to servers with IP addresses ranging from 10.1.1.0 to 10.1.1.255:
hostname(config)# username Anyuser attributeshostname(config-username)# webvpnhostname(config-username-webvpn)# auto-signon allow ip 10.1.1.0 255.255.255.0 auth-type basicRelated Commands
show running-config webvpn auto-signon
Displays auto-signon assignments of the running configuration.
auto-summary
To enable the automatic summarization of subnet routes into network-level routes, use the auto-summary command in router configuration mode. To disable route summarization, use the no form of this command.
auto-summary
no auto-summary
Syntax Description
This command has no arguments or keywords.
Defaults
Route summarization is enabled for RIP Version 1, RIP Version 2, and EIGRP.
Command Modes
The following table shows the modes in which you can enter the command:
Router configuration
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Command History
Usage Guidelines
Route summarization reduces the amount of routing information in the routing tables.
RIP Version 1 always uses automatic summarization. You cannot disable automatic summarization for RIP Version 1.
If you are using RIP Version 2, you can turn off automatic summarization by specifying the no auto-summary command. Disable automatic summarization if you must perform routing between disconnected subnets. When automatic summarization is disabled, subnets are advertised.
EIGRP summary routes are given an administrative distance value of 5. You cannot configure this value.
Only the no form of this command appears in the running configuration.
Examples
The following example disables RIP route summarization:
hostname(config)# router riphostname(config-router)# network 10.0.0.0hostname(config-router)# version 2hostname(config-router)# no auto-summaryThe following example disables automatic EIGRP route summarization:
hostname(config)# router eigrp 100hostname(config-router)# network 10.0.0.0hostname(config-router)# no auto-summaryRelated Commands
auto-update device-id
To configure the adaptive security appliance device ID for use with an Auto Update Server, use the auto-update device-id command in global configuration mode. To remove the device ID, use the no form of this command.
auto-update device-id [hardware-serial | hostname | ipaddress [if_name] | mac-address [if_name] | string text]
no auto-update device-id [hardware-serial | hostname | ipaddress [if_name] | mac-address [if_name] | string text]
Syntax Description
Defaults
The default ID is the hostname.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Examples
The following example sets the device ID to the serial number:
hostname(config)# auto-update device-id hardware-serialRelated Commands
auto-update poll-at
To schedule a specific time for the security appliance to poll the Auto Update Server, use the auto-update poll-at command from global configuration mode. To remove all specified scheduling times for the security appliance to poll the Auto Update Server, use the no form of this command.
auto-update poll-at days-of-the-week time [randomize minutes] [retry_count [retry_period]]
no auto-update poll-at days-of-the-week time [randomize minutes] [retry_count [retry_period]]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Usage Guidelines
The auto-update poll-at command specifys a time at which to poll for updates. If you enable the randomize option, the polling occurs at a random time within the range of the first time and the specified number of minutes. The auto-update poll-at and auto-update poll-period commands are mutually exclusive. Only one of them can be configured.
Examples
In the following example, the security appliance polls the Auto Update Server every Friday and Saturday night at a random time between 10:00 p.m. and 11:00 p.m. If the security appliance is unable to contact the server, it tries two more times every 10 minutes.
hostname(config)# auto-update poll-at Friday Saturday 22:00 randomize 60 2 10hostname(config)# auto-update server http://192.168.1.114/aus/autoupdate.aspRelated Commands
auto-update poll-period
To configure how often the adaptive security appliance checks for updates from an Auto Update Server, use the auto-update poll-period command in global configuration mode. To reset the parameters to the defaults, use the no form of this command.
auto-update poll-period poll_period [retry_count [retry_period]]
no auto-update poll-period poll_period [retry_count [retry_period]]
Syntax Description
Defaults
The default poll period is 720 minutes (12 hours).
The default number of times to try reconnecting to the Auto Update Server if the first attempt fails is 0.
The default period to wait between connection attempts is 5 minutes.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Usage Guidelines
The auto-update poll-at and auto-update poll-period commands are mutually exclusive. Only one of them can be configured.
Examples
The following example sets the poll period to 360 minutes, the retries to 1, and the retry period to 3 minutes:
hostname(config)# auto-update poll-period 360 1 3Related Commands
auto-update server
To identify the Auto Update Server, use the auto-update server command in global configuration mode. To remove the server, use the no form of this command. The adaptive security appliance periodically contacts the Auto Update Server for any configuration, operating system, and ASDM updates.
auto-update server url [source interface] [verify-certificate]
no auto-update server url [source interface] [verify-certificate]
Syntax Description
Defaults
No default behavior or values.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
7.0(1)
This command was introduced.
7.2(1)
The command was modified to add support for multiple servers.
Usage Guidelines
You can configure multiple servers to work with auto update. When checking for updates, a connection is made to the first server, but if that fails then the next server will be contacted. This will continue until all the servers have been tried. If all of them fail to connect, then a retry starting with the first server is attempted if the auto-update poll-period is configured to retry the connection.
For auto update functionality to work properly, you must use the boot system configuration command and ensure it specifies a valid boot image. Likewise, the asdm image command must be used with auto update to update the ASDM software image.
If the interface specified in the source interface argument is the same interface specified with the management-access command, requests to the Auto-Update Server will be sent over the VPN tunnel.
Examples
The following example sets the Auto Update Server URL and specifies the interface outside:
hostname(config)# auto-update server http://10.1.1.1:1741/ source outsideRelated Commands
auto-update timeout
To set a timeout period in which to contact the Auto Update Server, use the auto-update timeout command in global configuration mode. If the Auto Update Server has not been contacted for the timeout period, the adaptive security appliance stops all traffic through the adaptive security appliance. Set a timeout to ensure that the adaptive security appliance has the most recent image and configuration. To remove the timeout, use the no form of this command.
auto-update timeout period
no auto-update timeout [period]
Syntax Description
Defaults
The default timeout is 0, which sets the adaptive security appliance to never time out.
Command Modes
The following table shows the modes in which you can enter the command:
Global configuration
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Command History
Usage Guidelines
A timeout condition is reported with system log message 201008.
Examples
The following example sets the timeout to 24 hours:
hostname(config)# auto-update timeout 1440
Related Commands
