CLI Reference Guide

1036 IP Helper/DHCP Relay Commands
User Guidelines
Enable DHCP Relay using the ip helper enable command.
Example
The following example enables the circuit ID and remote agent ID options.
console(config)#ip dhcp relay information option
ip dhcp relay information option-insert
Use the ip dhcp relay information option-insert command in Interface
Configuration mode to enable the circuit ID option and remote agent ID
mode for BootP/DHCP Relay on the interface (also called option 82). Use the
no form of the command to return the option insert configuration to the
default.
Syntax
ip dhcp relay information option-insert [none]
no ip dhcp relay information option-insert
• none —Use to disable insertion of circuit id and remote agent id options
into DHCP messages.
Default Configuration
Disabled is the default configuration.
Command Mode
Interface (VLAN) Configuration mode
User Guidelines
Enable DHCP Relay using the ip helper enable command. The interface
configuration always takes precedence over global configuration. However, if
there is no interface configuration, then global configuration is followed.
Example
The following example enables the circuit ID and remote agent ID options on
vlan 10.
2CSNXXX_SWUM200.book Page 1036 Tuesday, December 10, 2013 1:22 PM