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Command Reference Guide

ManualsBrandsHP ManualsRoutersHP 5000 Router Series
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66 ● dhcp relay information 3Com Router 5000 Family and Router 6000 Family
Command Reference
dhcp relay information
Purpose Use the dhcp relay information enable command to enable the DHCP relay
to support option 82 globally.
Use the undo dhcp relay information enable command to disable the
DHCP relay to support option 82.
Syntax dhcp relay information enable
undo dhcp relay information enable
Parameters None
Default By default, DHCP relay is disabled to support option 82.
Example Enable DHCP relay to support option 82.
[3Com] dhcp relay information enable
View This command can be used in the following views:
■ System view
Description Option 82 supported by the DHCP relay can provide up to 255 sub-options. Among
them, only sub-option 1 and sub-option 2 are available at present, allowing the DHCP
relay to insert into a DHCP packet the MAC address and VLAN ID of the switch port
connected to the DHCP client, and the MAC address of the DHCP relay.