pfSense

Briefly looked at it, but DynDNS didn't have backend support for submitting these. Not even in beta.

You can manually enter a v6 address on the service center but that's as far as it goes.

Namecheap appears to only go by hostname and has nothing in the FAQ [re: IPv6], but they have been very responsive to support queries in the past. I opened a ticket with them to ask about doing AAAA dyndns. We'll see what they say.

Reply from Namecheap is that they currently don't support it, but they submitted the request upward and they are supposed to let me know if/when they hear something back.

Just noticed that https://dns.he.net/ supports IPv6 for DynDNS now. Update format is identical to IPv4, just send the IPv6 IP instead.

I suppose we could either have a drop-down that activates for certain providers that says "Update IPv4, Update IPv6, Update Both" or a pair of checkboxes, or take the easier way and have the IPv6 provider be considered separately in the master drop-down. For example "HE.net, HE.net IPv6, HE.net Tunnelbroker, and so on"

Would it be possible to at least add support for an IPv6 token to the update URL field for the "custom" service type? That seems like a fairly simple, non-intrusive change.

It would, but how would we test it? I still am not aware of any DynDNS providers doing IPv6 updates.

What about dns.he.net? From the example on their website:

http://dyn.example.com:password@dyn.dns.he.net/nic/update?hostname=dyn.example.com&myip=2001:db8:beef:cafe::1

Not so easy to test that one as it requires directing DNS for an entire domain at HE.net, it isn't really a DynDNS service so much as a dynamic way to update hosted DNS (like Namecheap).

If someone actually has a DNS account setup with he.net for a domain and is willing to test/help code, then it may be possible sooner rather than later.

I do have a domain with them, and I'll be happy to help test, but I'm probably not in a position to actually help code. I could also just set up a dynamic AAAA record for you to play with; let me know if that would be of interest, and if so, how to best get the hostname and hash to you.

Can you point me to where in the repository the code for this lives?

Pull requests here: https://github.com/pfsense/pfsense/pull/703

freedns.afraid.org also works, http://freedns.afraid.org/dynamic/update.php?&lt;Authentication Token>&address=<IPv6>