HP VPN Firewall Appliances Network Management Configuration Guide

730
Figure 378 Operating process of a DHCPv6 relay agent
Configuration prerequisites
Before you configure the DHCPv6 relay agent, enable IPv6 by using the ipv6 command in system view.
Configuration guidelines
• Executing the ipv6 dhcp relay server-address command repeatedly can specify multiple DHCPv6
servers. Up to eight DHCPv6 servers can be specified for an interface. After receiving requests from
DHCPv6 clients, the DHCPv6 relay agent forwards the requests to all the specified DHCPv6 servers.
• If the DHCPv6 server address is a link-local address or link-scoped multicast address on the local
link, you must specify an outgoing interface by using the interface keyword in the ipv6 dhcp relay
server-address command. Otherwise, DHCPv6 packets might fail to be forwarded to the DHCPv6
server.
• After you remove all the specified DHCPv6 servers from an interface with the undo ipv6 dhcp relay
server-address command, DHCPv6 relay agent is disabled on the interface.
• An interface cannot serve as a DHCPv6 relay agent and DHCPv6 server at the same time.
• Do not enable the DHCPv6 relay agent and DHCPv6 client on the same interface.
Configuration procedure
To configure the DHCPv6 relay agent:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable DHCPv6 relay
agent on the interface and
specify a DHCPv6 server.
ipv6 dhcp relay server-address
ipv6-address [ interface
interface-type interface-number ]
By default, DHCPv6 relay agent is
disabled and no DHCPv6 server is
specified on the interface.
(1) Solicit (contains a Rapid Commit option)
(4) Reply
DHCPv6 client DHCPv6 relay agent DHCPv6 server
(2) Relay-forward
(3) Relay-reply