Cisco Nexus 7000 Series Command Reference Manual page 425

I Commands
Examples
This example shows how to enable VRF support for the DHCP relay agent, which is dependent upon enabling
Option-82 support for the DHCP relay agent, and how to configure a DHCP server address on a Layer 3
interface when the DHCP server is in a VRF named SiteA:
switch# configure terminal
switch(config)# ip dhcp relay information option
switch(config)# ip dhcp relay information option vpn
switch(config)# interface ethernet 1/3
switch(config-if)# ip dhcp relay address 10.43.87.132 use-vrf SiteA
switch(config-if)#
Command
ip dhcp relay
ip dhcp relay address
ip dhcp relay information option
ip dhcp relay sub-option type cisco
ip dhcp snooping
show running-config dhcp
ip dhcp relay information option vpn
Description
Enables or disables the DHCP relay agent.
Configures the IP address of a DHCP server on an
interface.
Enables the insertion and removal of option-82
information from DHCP packets forwarded by the
DHCP relay agent.
Enables DHCP to use Cisco proprietary numbers 150,
152, and 151 when filling the link selection, server
ID override, and VRF name/VPN ID relay agent
option-82 suboptions.
Globally enables DHCP snooping on the device.
Displays the DHCP snooping configuration, including
the IP source guard configuration.
Cisco Nexus 7000 Series Security Command Reference
399