Ip Dhcp Smart-Relay Global - Cisco Nexus 7000 Series Command Reference Manual

ip dhcp smart-relay global

ip dhcp smart-relay global
To enable Dynamic Host Configuration Protocol (DHCP) smart relay globally on the Cisco NX-OS device,
use the ipdhcp smart-relay global command. To disable DHCP smart relay globally on the Cisco NX-OS
device, use the no form of this command.
ip dhcp smart-relay global
no ip dhcp smart-relay global
Syntax Description
This command has no arguments or keywords.
Command Default
Disabled
Command Modes
Global configuration mode
Command History
Release
5.2(1)
Usage Guidelines
The DHCP smart relay agent can be configured independently in default and nondefault VDCs.
Before using the ip dhcp smart-relay global command, you must enable the IP DHCP relay agent using the
ip dhcp relay command.
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.
A maximum of 10,000 clients can use DHCP smart relay at any given time.
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 enable DHCP smart relay globally on the Cisco NX-OS device:
switch# configure terminal
switch(config)# ip dhcp relay
switch(config)# ip dhcp smart-relay global
switch(config)#
This example shows how to disable DHCP smart relay globally on the Cisco NX-OS device:
switch# configure terminal
Cisco Nexus 7000 Series Security Command Reference
406
Modification
This command was introduced.
I Commands