Users Guide

Table Of Contents
Usage
Information
Disable the server identifier override (suboption-11) on the interface using the no ip dhcp-relay
server-override command.
If you enable server-override-enable Globally, DHCPv4 relay server identifier override option
(suboption-11) is enabled on an interface by default. To avoid sending this option on selected
client, you must explicitly disable the option on the interface using the no ip dhcp-relay server-
override command.
NOTE: The ip dhcp-relay server-override configuration is disabled globally by default.
With server override enabled, the DHCP relay drops further packets from the DHCP client if there is
a change in the anycast gateway IP address. This behavior forces the client to restart the discovery
process.
Table 40. Values
Global Level Interface Level Server-override value
Enabled Enabled (By default) Enabled. value: anycast
gatewayIP
Disabled Enabled Disabled
Enabled Disabled Disabled on interface
This command is restricted to netadmin and sysadmin role users.
Example
Globally enable Server-override:
OS10(conf)# ip dhcp-relay server-override
Disable server-override on interface
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)#no ip dhcp-relay server-override
Supported
Releases
10.5.2 or later
ipv6 dhcp-relay interface-id
Enables or disables DHCPv6 interface-id option..
Syntax
ipv6 dhcp-relay interface-id
Parameters None
Defaults Disabled
Command Mode CONFIGURATION
Usage
Information
After enabling the interface-id option, the interface name is used for interface description.
NOTE: This command is restricted to the sysadmin and netadmin user roles.
Example
OS10(config)# ipv6 dhcp-relay interface-id
OS10(config)# ipv6 dhcp-relay ?
interface-id Enable interface-id option
remote-id Enable remote-id option
prefix Configure prefix value
hostname Configure DHCPv6 hostname
304 System management