Dell SmartFabric OS10 User Guide Release 10.5.4

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ip dhcp-relay server-override

Enables server identifier override (suboption-11) globally on the relay agent.

Syntax

ip dhcp-relay server-override

Parameters

None.

Defaults

If server-override is enabled globally, DHCPv4 relay server identifier override option (suboption-11) is enabled on an interface by default.

Command Mode

INTERFACE CONFIGURATION

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 1. ValuesThe following table lists the server-override value when this command is enabled at the global level or interface level or both.
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