[pkg-dhcp-devel] Bug#619310: Advice from upstream / ISC

[Sebastian Kricner]

Hello,

well i can confirm, that DDNS works.

Just a snippet from Syslog:

PTR Jul  4 20:45:23 gw dhcpd: Added reverse map from
1.c.4.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.7.3.1.8.f.6.0.1.0.0.2.ip6.arpa.
to 0101193a80be01b77724697-ipv6.tuxwave.net.

But i must say that i am not really satisfied with it, so as i would
for example use Parts of the IPv6 Adress leased into the PTR record.

Currently i am using:

ddns-hostname = concat(binary-to-ascii(16, 8, "", option
dhcp6.client-id), "-ipv6");

Which yields for example to:

1.c.4.f	PTR 0101193a80be01b77724697-ipv6.tuxwave.net.

But ISC-DHCPv6 allows me not to use the supplied IPv6 Address.

In IPv4 it is like so:

ddns-hostname = concat(binary-to-ascii(10, 8, "-", leased-address),
"-ipv4");

Which yields:

192-168-0-34-ipv4.tuxwave.net

With IPv6 i for example could use the last 64 Bits (Substring of IPv6
Addr), so that it would show like so:

0000-0000-0000-f4c1-ipv6.tuxwave.net

This is what not works. At least at that time i configured it (some
years ago).

Sebastian Kricner










Am Thu, 04 Jul 2013 11:32:22 +0200
schrieb Daniel Pocock <daniel at pocock.com.au>:


> This ISC mailing list post from 2008 strongly suggests that isc-dhcp
> server does support DDNS updates for IPv6:
> 
>   https://lists.isc.org/pipermail/dhcp-users/2008-August/007025.html
> 
> "ISC DHCPv6 does support the DHCPv6 FQDN option and Dynamic DNS
> Updates, configuration is precisely the same as with DHCPv4."
> 
> Nonetheless, I still haven't seen it actually work with the package
> from wheezy: it may simply be a configuration issue though.
> 
> Sebastian, when you say there is a "known" upstream issue, can you
> provide a bug reference or other details?
> 



--
http://tuxwave.net -- the difference to think makes it real!