Dhcpv6 Overview; Feature And Hardware Compatibility; Dhcpv6 Address/Prefix Assignment; Rapid Assignment Involving Two Messages - HP FlexNetwork MSR2003 Configuration Manual

DHCPv6 overview

DHCPv6 provides a framework to assign IPv6 prefixes, IPv6 addresses, and other configuration
parameters to hosts.

Feature and hardware compatibility

Hardware
MSR954(JH296A/JH297A/JH298A/JH299A)
MSR1002-4/1003-8S
MSR2003
MSR2004-24/2004-48
MSR3012/3024/3044/3064
MSR4060/4080

DHCPv6 address/prefix assignment

An address/prefix assignment process involves two or four messages.

Rapid assignment involving two messages

As shown in
1. The DHCPv6 client sends to the DHCPv6 server a Solicit message that contains a Rapid
Commit option to prefer rapid assignment.
2. If the DHCPv6 server supports rapid assignment, it responds with a Reply message containing
the assigned IPv6 address/prefix and other configuration parameters. If the DHCPv6 server
does not support rapid assignment,
Figure 92 Rapid assignment involving two messages

Assignment involving four messages

As shown in
1. The DHCPv6 client sends a Solicit message to request an IPv6 address/prefix and other
configuration parameters.
2. The DHCPv6 server responds with an Advertise message that contains the assignable
address/prefix and other configuration parameters if either of the following conditions exists:
Figure 92, rapid assignment operates in the following steps:
Figure 93, four-message assignment operates using the following steps:
DHCPv6 compatibility
No
Yes
Yes
Yes
Yes
Yes
Assignment involving four messages
236
is performed.