Users Guide

Table Of Contents
DHCPv6 Server Settings 1445
Configuring DHCPv6 Interface Information
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 may be configured as a
DHCPv6 server or a DHCPv6 relay agent, but not both.
Configuring an interface in DHCP relay mode overwrites DHCP server mode
and vice-versa. An IP interface configured in relay mode cannot be configured
as a DHCP client (ip address dhcp).
Up to 10 relay destinations may be configured per interface. If a destination
relay address has global scope, then the interface option (option 18) is not
required. If the destination relay address scope is link local (FE80::) or
multicast (FF00::/8), then the destination interface option (option 18) must
be configured.
If no relay destination is configured, then a relay interface must be
configured and the DHCPV6-ALLAGENTS multicast address (such as,
FF02::1:2) is used to relay DHCPv6 messages to the relay server.
Command Purpose
configure Enter Global Configuration mode.
service dhcp Enable the IPv6 DHCP service.
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.