R21xx-HP FlexFabric 11900 Layer 3 IP Services Command Reference

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Use undo dhcp snooping enable to disable DHCP snooping.
Syntax
dhcp snooping enable
undo dhcp snooping enable
Default
DHCP snooping is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
When a DHCP snooping entry is learned or removed, the device does not update the database file until
after the specified waiting period. All changed entries during that period will be updated.
When DHCP snooping is disabled, the device forwards all responses from DHCP servers.
Examples
# Enable DHCP snooping.
<Sysname> system-view
[Sysname] dhcp snooping enable
dhcp snooping information circuit-id
Use dhcp snooping information circuit-id to configure the padding content and code type for the circuit
ID sub-option.
Use undo dhcp snooping information circuit-id to restore the default.
Syntax
dhcp snooping information circuit-id { [ vlan vlan-id ] string circuit-id | { normal | verbose
[ node-identifier { mac | sysname | user-defined node-identifier } ] } [ format { ascii | hex } ] }
undo dhcp snooping information circuit-id [ vlan vlan-id ]
Default
The padding format is normal and the code type is hex.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
Parameters
vlan vlan-id: Specifies a VLAN ID for the circuit ID sub-option.
string circuit-id: Specifies the padding content for the circuit ID sub-option, a case-sensitive string of 3 to
63 characters.