dhcpv6-relay information

Enables the DHCP relay agent (which forwards DHCPv6 messages between DHCP clients and DHCP servers) to provide network security by checking for and adding DHCPv6 option 37 information that identifies from where the DHCP request came. The Option 37 sub-option is the DHCP client's remote ID, providing trusted location information for the remote client. DHCPv6 relay information can be enabled at the VLAN level or at the interface level.
Syntax
dhcp6-relay information {enable|remote-id remote-id}
no dhcp6-relay information {enable|remote-id remote-id}
Command Default

DHCPv6 packets are forwarded without regard for the client's network location information in the DHCPv6 messages.

Parameters
enable

Enables DHCPv6 relay information on the specified VLAN or interface. This allows the user to configure remote-id for the VLAN.

remote-idremote-id
Configures the client device remote-id to be added. The remote-id may be up to 63 characters in length.
Modes

Interface configuration mode.

Usage Guidelines

This command is supported for ICX 8200 devices only.

The no form of the command will disable the DHCPv6 relay information functionality on the specified VLAN or interface.

Examples

The following example enables DHCPv6 relay information and defines the remote-id on the specified VLAN. The show command is used to confirm the configuration on the VLAN.

device# config terminal
device(config)# vlan 1000
device(config-vlan-1000)# dhcp6-relay information enable
device(config-vlan-1000)# dhcp6-relay information remote-id remote01
device(config-vlan-1000)# exit
device# show running-config vlan 1000
vlan 1000 by port
 tagged ethe 1/1/11 ethe 1/1/23 
 dhcp-relay information enable
 dhcp-relay information remote-id remote01

The following example enables DHCP relay information and defines the remote-id on the specified interface. The show command is used to confirm the configuration on the interface. 

device(config)# interface ethernet 1/1/23
device(config-if-e1000-1/1/23)# dhcp6-relay information enable
device(config-if-e1000-1/1/23)# dhcp6-relay information remote-id remote02
device(config-if-e1000-1/1/23)# exit
device# show running-config interface ethernet 1/1/23
interface ethernet 1/1/23
 dhcp-relay information enable
 dhcp-relay information remote-id remote02
History
Release version Command history
10.0.20 This command was introduced.
Parent topic: Commands D through H