Configuring Dhcpv6 Relay Agent; Overview; Dhcpv6 Relay Agent Operation - HP 3600 v2 Series Configuration Manual

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Configuring DHCPv6 relay agent

Overview

A DHCPv6 client usually uses a multicast address to contact the DHCPv6 server on the local link to obtain
an IPv6 address and other configuration parameters. As shown in
resides on another subnet, the DHCPv6 client can contact the server via a DHCPv6 relay agent, so you
do not need to deploy a DHCPv6 server on each subnet.
Figure 67 Typical DHCPv6 relay agent application

DHCPv6 relay agent operation

Figure 68
shows how the DHCPv6 client obtains an IPv6 address and other network configuration
parameters from the DHCPv6 server through the DHCPv6 relay agent, using the process of rapid
assignment involving two messages.
Figure 68 Operating process of a DHCPv6 relay agent
DHCPv6 client
(1)
Solicit (contains a Rapid Commit option)
The operation process is as follows:
The DHCPv6 client sends a Solicit message containing the Rapid Commit option to the multicast
1.
address FF02::1:2 of all the DHCPv6 servers and relay agents.
DHCPv6 relay agent
(4) Reply
(2) Relay-forward
(3) Relay-reply
158
Figure
67, if the DHCPv6 server
DHCPv6 server

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