Users Guide

This command is restricted to netadmin and sysadmin role users.
Example
OS10(conf-if-eth1/1/1)# ip dhcp-relay
server-override Enable dhcp-relay server overrride sub-option
source-interface Source interface for dhcp relay
vss-info Configure VSS information
OS10-8986(conf-if-eth1/1/1)# ip dhcp-relay vss-info
type Configure VSS type
OS10-8986(conf-if-eth1/1/1)# ip dhcp-relay vss-info type
0 Type-0
1 Type-1
255 Type-255 for global/default address space
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ip dhcp-relay vss-info type 0 value vrf_red
OS10(conf-if-eth1/1/1)# ip dhcp-relay vss-info type 1 value F10:1234
OS10(conf-if-eth1/1/1)# ip dhcp-relay vss-info type 255
Supported
Releases
10.5.2 or later
ip dhcp-relay link-selection
Enables link-selection (suboption-5) globally on the relay agent.
Syntax
ip dhcp-relay link-selection
Parameters None.
Defaults Disabled on the relay agent.
Command Mode CONFIGURATION
Usage
Information
After enabling the link-selection option, the DHCPv4 link-selection support is enabled Globally.
Anycast gateway IP address or client interface IP address is filled in the link-selection option to
communicate the client subnet to the DHCP server.
NOTE: Link-selection gets functionally enabled only if Option-82 is enabled Globally and at the
interface level.
This command is restricted to the netadmin and sysadmin role users.
Example
OS10(conf)# ip dhcp-relay link-selection
Supported
Releases
10.5.2 or later
ip dhcp-relay source-interface
Configures the source interface to be used by the DHCP relay agent to decide the Gateway IP address used for forwarding a
DHCP packet received on the VRF.
Syntax
ip dhcp-relay {source-interface [ethernet node/slot/port | loopback
loopback-id | port-channel id-number | vlan vlan-id | virtual-network vn-
id]
Parameters
● ethernet node/ slot/port - Enter the ethernet interface type.
● loopback loopback-id - Enter the Loopback interface type.
System management 301