Administrator Guide

DHCPv6 Server and Relay Settings 1439
Configuring DHCPv6 Interface Information
Beginning in Privileged EXEC mode, use the following commands to
configure an interface as a DHCPv6 server or a DHCPv6 relay agent. The
server and relay functionality are mutually exclusive. In other words, a VLAN
routing interface can be configured as a DHCPv6 server or a DHCPv6 relay
agent, but not both.
Command Purpose
configure Enter Global Configuration mode.
interface {tunnel
tunnel-id | vlan vlan-id }
Enter interface configuration mode for a tunnel or VLAN
routing interface to configure as a DHCPv6 relay agent.
ipv6 dhcp relay
{destination relay-
address [interface vlan
vlan-id ] | interface vlan
vlan-id } [remote-id
{duid-ifid | user-
defined-string }]
Configure the interface for DHCPv6 relay functionality.
• destination — Keyword that sets the relay server IPv6
address.
•
relay-address — An IPv6 address of a DHCPv6 relay
server.
•
interface — Sets the relay server interface.
•
vlan-id — A valid VLAN ID.
• [remote-id {duid-ifid |
user-defined-string }] — The
Relay Agent Information Option “remote ID” sub-option
to be added to relayed messages. This can either be the
special keyword duid-ifid, which causes the “remote ID”
to be derived from the DHCPv6 server DUID and the
relay interface number, or it can be specified as a user-
defined string.
exit Exit to Global Configuration Mode
interface {tunnel
tunnel-id | vlan vlan-id }
Enter interface configuration mode for a tunnel or VLAN
routing interface to configure with DHCPv6 server
functionality.