ip helper-address
Syntax
ip helper-address <IPV4-ADDR> [vrf <VRF-NAME>]
no ip helper-address <IPV4-ADDR> [vrf <VRF-NAME>]
Description
Defines the address of a remote DHCP server or DHCP relay agent. Up to eight addresses can be defined. The DHCP agent forwards DHCP client requests to all defined servers.
This command requires that you define a source IP address for DHCP relay with the command ip source-interface
. The configured source IP on the VRF is used to forward DHCP packets to the server.
A helper address cannot be defined on the OOBM interface.
The
no
form of this command removes an IP helper address.
Command context
config-if
Parameters
helper-address <IPV4-ADDR>
Specifies the helper IP address in IPv4 format (
x.x.x.x
), wherex
is a decimal number from 0 to 255.vrf <VRF-NAME>
Specifies the name of a VRF. Default:
default
.
Authority
Administrators or local user group members with execution rights for this command.
Examples
On the 6400 Switch Series, interface identification differs.
switch(config)# interface 1/1/1 switch(config-if)# ip helper-address 10.10.10.209
switch(config-if)# no ip helper-address 10.10.10.209
myvrf
.
switch(config)# interface 1/1/2 switch(config-if)# ip helper-address 10.10.10.209 vrf myvrf
myvrf
.
switch(config-if)# no ip helper-address 10.10.10.209 vrf myvrf