Users Guide

Layer 3 Routing Commands 1479
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 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 requests forwarded to the DHCP server.
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. Use
the ip dhcp relay information option command to globally enable inclusion
of Option 82 information in DHCP requests forwarded to a DHCP server.
Example
The following example enables the circuit ID and remote agent ID options on
VLAN 10.
console(config)#interface vlan 10
console(config-if-vlan10)#ip dhcp relay information option-insert