R0106-HP MSR Router Series Layer 3 - IP Services Command Reference(V7)

69
If you use the command multiple times, the most recent configuration takes effect.
Examples
# Specify the padding content for the Remote ID sub-option of Option 82 as device001.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] dhcp relay information enable
[Sysname-GigabitEthernet2/1/1] dhcp relay information strategy replace
[Sysname-GigabitEthernet2/1/1] dhcp relay information remote-id string device001
Related commands
• dhcp relay information enable
• dhcp relay information strategy
• display dhcp relay information
dhcp relay information strategy
Use dhcp relay information strategy to configure the strategy for the DHCP relay agent to handle
messages containing Option 82.
Use undo dhcp relay information strategy to restore the default handling strategy.
Syntax
dhcp relay information strategy { drop | keep | replace }
undo dhcp relay information strategy
Default
The handling strategy for messages that contain Option 82 is replace.
Views
Interface view
Predefined user roles
network-admin
Parameters
drop: Drops DHCP messages that contain Option 82 messages.
keep: Keeps the original Option 82 intact.
replace: Replaces the original Option 82 with the configured Option 82.
Usage guidelines
This command takes effect only on DHCP requests that contain Option 82.
When enabled to support Option 82, the DHCP relay agent always adds Option 82 into DHCP requests
that do not contain Option 82 before forwarding the requests to the DHCP.
Examples
# Specify the handling strategy for Option 82 as keep.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] dhcp relay information enable