Cisco IOS Software Releases 12.4 T

Table Of Contents

DHCP Class Support for Client Identification

DHCP Class Support for Client Identification

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The DHCP Class Support for Client Identification feature enhances the DHCP class mechanism to support options 60, 77, 124, and 125. These options identify the type of client sending the DHCP message. The DHCP relay agent can make forwarding decisions based on the content of the options in the DHCP message sent by the client.

Configuration Information

Configuration information is included in the "Configuring the Cisco IOS DHCP Relay Agent" module in the Cisco IOS IP Addressing Services Configuration Guide, Release 12.4T, at the following URL:

•http://www.cisco.com/en/US/docs/ios/ipaddr/configuration/guide/iad_dhcp_rly_agt_ps6441_TSD_Products_Configuration_Guide_Chapter.html

The following section provides information about this feature:

•Configuring DHCP Relay Class Support for Client Identification

Command Reference Information

Command reference information is included in the "DHCP Commands" chapters of theCisco IOS IP Addressing Services Command Reference, Release 12.4T, at the following URL:

New or Modified Commands

The following command is new for this feature:

•option hex

List of All Release 12.4T Commands

An alphabetical list of all Cisco IOS Release 12.4T commands is in the Cisco IOS Master Commands List, Release 12.4T, at the following URL:

•http://www.cisco.com/en/US/docs/ios/mcl/124tmcl/124t_book.html

List of All New, Modified, Removed, and Replaced Release 12.4T Commands

Alphabetized lists of all new, modified, removed, and replaced commands for each Cisco IOS Release 12.4T release are in the Cisco IOS New, Modified, Removed, and Replaced Commands, Release 12.4T, document at the following URL:

http://www.cisco.com/en/US/products/ps6441/products_product_index09186a00805db026.html

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