Cisco Nexus 7000 Series, Command Reference Manual

Page: 420 / 1018

ip dhcp relay address
To configure the IP address of a DHCP server on an interface, use the ip dhcp relay address command. To
remove the DHCP server IP address, use the no form of this command.
ip dhcp relay address IP-address [ use-vrf vrf-name ]
no ip dhcp relay address IP-address
[
use-vrf vrf-name
]
Syntax Description
IPv4 address of the DHCP server. IP-address
Specifies the virtual routing and forwarding instance
(VRF) that the DHCP server is within, where the
vrf-name argument is the name of the VRF. The VRF
membership of the interface connected to the DHCP
server determines the VRF that the DHCP is within.
use-vrf vrf-name
Command Default
None
Command Modes
Interface configuration
Command History
Modification Release
Added support for the use-vrf vrf-name option. 5.0(2)
Up to four ip dhcp relay address commands can be added to the configuration
of a Layer 3 Ethernet interface or subinterface.
4.0(3)
This command was introduced. 4.0(1)
Usage Guidelines
To use this command, you must enable the DHCP snooping feature (see the feature dhcp command).
You can configure up to four DHCP server IP addresses on Layer 3 Ethernet interfaces and subinterfaces,
VLAN interfaces, and Layer 3 port channels. In Cisco NX-OS Release 4.0.2 and earlier releases, you can
configure only one DHCP server IP address on an interface.
When an inbound DHCP BOOTREQUEST packet arrives on the interface, the relay agent forwards the packet
to all DHCP server IP addresses specified on that interface. The relay agent forwards replies from all DHCP
servers to the host that sent the request.
This command does not require a license.
Cisco Nexus 7000 Series Security Command Reference
394
I Commands
ip dhcp relay address