Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Dynamic /64 on dialup with Windows ADDS DNS-Server and stateful DHCP.

    Scheduled Pinned Locked Moved DHCP and DNS
    1 Posts 1 Posters 120 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • GrimetonG
      Grimeton
      last edited by

      Hi,

      so I was looking into this because I ran into a few problems.

      What I got working so far:

      All clients are registering their IP6 in the ADDS-DNS when they got it assigned. They also use the ADDS-DNS-Server that I hand out via DHCP6.

      So far so good. That makes forward lookup work like a charm. Together with a rule to sort up the entries that are older than one day from the ADDS-DNS, you don't have any leftovers in case a client goes offline before deleting it's DNS-registration.

      The only thing missing is the reverse lookup. The registration of the forward-lookup-components is working because the domain is already registered in the DNS, but the reverse lookup zone is missing and not created automagically...

      I was thinking about doing all kinds of Powershell tricks, till I realized it would be enough if pfSense could just provide the reverse lookup zone (in-addr.arpa), by registering the FQDN in the DHCP6-request to its nameserver.

      By using the ADDS-DNS as default on all clients, and forwarding requests to unknown DNS-zones to the pfSense nameserver for further lookup, a reverse lookup of an IP6 from the dynamic /64 should just work out of the box.

      No scripts needed, nothing. It will all work fully automagically.

      I was looking into using ADDS-DHCP6-server to do this via the Assisted option of the RA-server in pfSense. Sadly the DHCP-server doesn't want to offer additional information to clients without having a subnet to serve. So that one is out of the question.

      I wonder if there's another solution out there that doesn't require heavy scripting?

      Cu

      1 Reply Last reply Reply Quote 0
      • First post
        Last post
      Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.