Ip dhcp relay address – Brocade Network OS Command Reference v4.1.0 User Manual

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Network OS Command Reference

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ip dhcp relay address

Configures the IP DHCP Relay on a Layer 3 interface.

Synopsis

ip dhcp relay address ip-addr [use-vrf vrf-name]

Operands

ip-addr

IPv4 address of the DHCP server where the DHCP client requests are to be
forwarded.

use-vrf

Use this option if the VRF where the DHCP server is located is different from
the VRF of the interface where the client is connected.

vrf-name

VRF name.

Defaults

None

Command Modes

Interface configuration mode

Description

Configures the IP DHCP Relay on the switch Layer 3 interface using the IPv4 address of the DHCP
server where the DHCP client requests are to be forwarded. You can configure the address on a
virtual Ethernet (VE) or a physical GigabitEthernet, TengigabitEthernet, or FortyGigabitEthernet
interface.

Usage Guidelines

Enter the command while in interface configuration mode for a VE or physical interface where you
want to configure the IP DHCP Relay. Configure up to four DHCP server IP addresses per interface.
Use the no version of this command to remove the IP DHCP Relay from the interface. If the use-vrf
option is not used, it is assumed that the DHCP server and interface where the client is connected
are on the same VRF.

Examples

To configure an IP DHCP Relay address on a TenGigabitEthernet interface in standalone mode:

sw0(config)# interface TenGiga 2/3/1

sw0(conf-if-te-2/3/1)# ip dhcp relay address 100.1.1.2

To configure an IP DHCP Relay address on a VE interface in standalone mode:

sw0(config)# interface ve 100

sw0(config-Ve-100)# ip dhcp relay address 100.1.1.2

To configure an IP DHCP Relay address on a VE interface in VCS mode:

switch(config)# rbridge-id 1

switch(config-rbridge-id-1)interface ve 101

switch(config-Ve-101)# ip dhcp relay address 100.1.1.2

switch(config-Ve-101)# ip dhcp relay address 12.3.4.6

To configure an IP DHCP Relay address on an interface if the DHCP server is on a different VRF
than the interface where the client connects:

switch# config

Entering configuration mode terminal

switch(config)# rbridge-id 2

switch(config-rbridge-id-2)# interface ve 103

switch(config-Ve-103)# ip dhcp relay address 3.1.2.255 use-vrf blue