HP 635n HP Jetdirect Print Servers - Practical IPv6 Deployment for Printing an - Page 26

This whitepaper makes the case for disabling SLAAC and moving to DHCPv6 for stateful IPv6 address management. The paramount objection to moving to DHCPv6 for stateful IPv6 address management is that SLAAC can use DHCPv6 to provide "Other" parameters and therefore there is no need for DHCPv6 to provide anything but those "Other" parameters, such as IPv6 addresses for DNS servers. What DHCPv6 and stateful IPv6 address management does provide is the following: • Centralized IPv6 Address Management • DNS Update via the FQDN option First and foremost, if one has to setup the DHCPv6 server for the "Other" parameters, one might as well use its IPv6 address management capability and get the DNS Update functionality. This extra benefit seems to provide quite a bit without involving a lot of extra work. The only other requirement is that DHCPv6 Relay Agents are used so that DHCPv6 messages can be sent and received across routers for unconfigured clients. Refer to Figure 18 - DHCPv6 Figure 18 - DHCPv6 Here we have shown our DHCPv6 server and our DHCPv6 Relay Agents. Devices that are not integrated into the Active Directory can utilize the DHCPv6 server to enter their IPv6 addresses and corresponding names into DNS. 26