R21xx-HP FlexFabric 11900 Layer 3 IP Services Command Reference

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dhcp snooping information strategy
Use dhcp snooping information strategy to configure the handling strategy for Option 82 in request
messages.
Use undo dhcp snooping information strategy to restore the default.
Syntax
dhcp snooping information strategy { drop | keep | replace }
undo dhcp snooping information strategy
Default
The handling strategy for Option 82 in request messages is replace.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
drop: Drops request messages containing Option 82.
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 for DHCP request messages containing Option 82.
When enabled to support Option 82, the DHCP relay agent will always add Option 82 into DHCP
requests that do not contain Option 82 before forwarding the requests to the DHCP.
Examples
# Configure the handling strategy for Option 82 in request messages as keep.
<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] dhcp snooping information enable
[Sysname-Ten-GigabitEthernet1/0/1] dhcp snooping information strategy keep
Related commands
• dhcp snooping information circuit-id
• dhcp snooping information remote-id
dhcp snooping rate-limit
Use dhcp snooping rate-limit to configure the maximum rate at which an interface can receive DHCP
packets.
Use undo dhcp snooping rate-limit to disable the rate limit.
Syntax
dhcp snooping rate-limit rate
undo dhcp snooping rate-limit