Ip Dhcp Relay Subnet-Broadcast - Cisco Nexus 7000 Series Command Reference Manual

ip dhcp relay subnet-broadcast

ip dhcp relay subnet-broadcast
To configure the Cisco NX-OS device to support the relaying of Dynamic Host Configuration Protocol (DHCP)
packets from clients to a subnet broadcast IP address, use the ip dhcp relay subnet-broadcast command. To
revert to the default behavior, use the no form of this command.
ip dhcp relay subnet-broadcast
no ip dhcp relay subnet-broadcast
Syntax Description
This command has no arguments or keywords.
Command Default
Disabled
Command Modes
Interface configuration mode (config-if)
Command History
Release
5.2(1)
Usage Guidelines
DHCP smart relay and DHCP subnet broadcast support are limited to the first 100 IP addresses of the interface
on which they are enabled.
You must configure a helper address on the interface in order to use DHCP smart relay and DHCP subnet
broadcast support.
DHCP smart relay and DHCP subnet broadcast support are limited to the first 100 IP addresses of the interface
on which they are enabled.
In a vPC environment with DHCP smart relay enabled, the subnet of the primary and secondary addresses of
an interface should be the same on both Cisco NX-OS devices.
This command does not require a license.
Examples This example shows how to configure the Cisco NX-OS device to support the relaying of DHCP packets from
clients to a subnet broadcast IP address:
switch# configure terminal
switch(config)# interface ethernet 3/2
switch(config-if)# ip dhcp relay subnet-broadcast
switch(config-if)#
This example shows how to remove configuration for relaying of DHCP packets from clients to a subnet
broadcast IP address:
switch# configure terminal
switch(config)# interface ethernet 3/2
switch(config-if)# no ip dhcp relay subnet-broadcast
Cisco Nexus 7000 Series Security Command Reference
400
Modification
This command was introduced.
I Commands