dhcp snooping relay information

Enables DHCP snooping relay information (DHCP Option 82) on an interface.
Syntax
dhcp snooping relay information
no dhcp snooping relay information
Command Default

DHCP option 82 is automatically enabled when DHCP snooping is enabled on the VLAN.

Modes

Interface configuration mode

Usage Guidelines

When DHCP snooping is enabled using the ip dhcp snooping vlan command, DHCP option 82 is automatically enabled on a VLAN. The dhcp snooping relay information command disables or re-enables DHCP option 82 for a specified interface on the VLAN.

The no form of the command disables DHCP option 82 for an interface.

Examples

The following example disables DHCP option 82 on a specified interface after it was automatically enabled when DHCP snooping was enabled on the VLAN. 

device# configure terminal
device(config)# ip dhcp snooping vlan 100
device(config)# interface ethernet 1/1/1
device(config-if-e1000-1/1/1)# no dhcp snooping relay information

The following example re-enables DHCP option 82 on a specified interface. 

device# configure terminal
device(config)# interface ethernet 1/1/1
device(config-if-e1000-1/1/1)# dhcp snooping relay information
Parent topic: Commands D through H