Debian Bug report logs - #619310
isc-dhcp-server still does not support IPv6 DDNS

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Sebastian Kricner <webmaster@funwelt.de>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: isc-dhcp-server still does not support IPv6 DDNS

Date: Tue, 22 Mar 2011 21:11:16 +0100

Package: isc-dhcp-server
Severity: normal
Tags: ipv6 squeeze upstream

ISC DHCPv4 still does not support IPv6 DDNS.
This is a known upstream issue.



-- System Information:
Debian Release: 6.0.1
  APT prefers oldstable
  APT policy: (500, 'oldstable'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.36.0-web100 (PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Message #10 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Daniel Pocock <daniel@pocock.com.au>

To: 619310@bugs.debian.org

Subject: still unresolved?

Date: Thu, 04 Jul 2013 00:00:50 +0200

Is this bug really still unresolved?

There are various guides online showing how to configure DDNS with ISC
bind, that suggests that upstream does support it.

On the other hand, I've tried to follow the instructions from a couple
of those guides and it doesn't actually work - the logs show no evidence
of communication between dhcpd and named.  It is working fine for IPv4,
just not IPv6

Message #15 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Daniel Pocock <daniel@pocock.com.au>

To: 619310@bugs.debian.org, webmaster@funwelt.de

Subject: Advice from upstream / ISC

Date: Thu, 04 Jul 2013 11:32:22 +0200

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?

Message #20 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Sebastian Kricner <sebastian.kricner@tuxwave.net>

To: Daniel Pocock <daniel@pocock.com.au>

Cc: 619310@bugs.debian.org

Subject: Re: Advice from upstream / ISC

Date: Thu, 4 Jul 2013 21:04:19 +0200

Also notice that my setup is not using client based DDNS.

I have not tested client based DDNS.

Just as they state:
https://lists.isc.org/pipermail/dhcp-users/2008-August/007031.html






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

Message #25 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Sebastian Kricner <sebastian.kricner@tuxwave.net>

To: 619310@bugs.debian.org

Subject: Re: Advice from upstream / ISC

Date: Thu, 4 Jul 2013 21:00:34 +0200

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@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!

Message #30 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Daniel Pocock <daniel@pocock.com.au>

To: Sebastian Kricner <sebastian.kricner@tuxwave.net>

Cc: 619310@bugs.debian.org, debian-ipv6@lists.debian.org

Subject: Re: Advice from upstream / ISC

Date: Thu, 04 Jul 2013 22:42:51 +0200

On 04/07/13 21:04, Sebastian Kricner wrote:
> 
> Also notice that my setup is not using client based DDNS.
> 
> I have not tested client based DDNS.
> 
> Just as they state:
> https://lists.isc.org/pipermail/dhcp-users/2008-August/007031.html
> 
> 

Thanks for that link - that provides a much more clear picture - I'll
email the ISC people to see if things have changed.

I'm guessing that the default dhclient with it's default config file in
Debian isn't going to work out of the box with DDNS the way it does with
IPv4.  That will be a showstopper for some users.

Have you tried wide-dhcp or any other alternative client and server for
DHCPv6?

Regards,

Daniel

Message #35 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Daniel Pocock <daniel@pocock.com.au>

To: dhcp-users@lists.isc.org

Cc: 619310@bugs.debian.org

Subject: IPv6 DDNS support in Linux distributions

Date: Thu, 04 Jul 2013 22:48:59 +0200

Hi,

I've been looking at this Debian bug:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=619310

and this link in particular:
https://lists.isc.org/pipermail/dhcp-users/2008-August/007031.html

Can anybody comment on the current status of DDNS for DHCPv6?

In particular,

- does the dhclient in Linux distributions "just work" for DDNS?  Does
it need some config tweak?  Or does it need code changes?  Debian has v4.2.2

- does the dhcpd server support this completely?  Is there a sample config?

- can anybody comment on any alternative permutations (e.g. using the
Windows or Mac OS X client against the dhcpd on Linux)?

- does the dhcpd have to run on the same box as the radvd / default
gateway or are there any other aspects of IPv6 DHCP/DDNS that are unlike
IPv4?

Regards,

Daniel

Message #40 received at 619310@bugs.debian.org (full text, mbox, reply):

From: Daniel Pocock <daniel@pocock.com.au>

To: dhcp-users@lists.isc.org

Cc: 619310@bugs.debian.org

Subject: IPv6 DDNS support in Linux distributions

Date: Thu, 04 Jul 2013 23:02:27 +0200

Hi,

I've been looking at this Debian bug:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=619310

and this link in particular:
https://lists.isc.org/pipermail/dhcp-users/2008-August/007031.html

Can anybody comment on the current status of DDNS for DHCPv6?

In particular,

- does the dhclient in Linux distributions "just work" for DDNS?  Does
it need some config tweak?  Or does it need code changes?  Debian has v4.2.2

- does the dhcpd server support this completely?  Is there a sample config?

- can anybody comment on any alternative permutations (e.g. using the
Windows or Mac OS X client against the dhcpd on Linux)?

- does the dhcpd have to run on the same box as the radvd / default
gateway or are there any other aspects of IPv6 DHCP/DDNS that are unlike
IPv4?

Regards,

Daniel

Message #45 received at 619310-close@bugs.debian.org (full text, mbox, reply):

From: Michael Gilbert <mgilbert@debian.org>

To: 619310-close@bugs.debian.org, 668983-close@bugs.debian.org, 368369-close@bugs.debian.org

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

Date: Mon, 9 Jan 2017 00:52:26 -0500

version: 4.3.1-1

ISC-DHCP's DDNS support is standards compliant as of version 4.3 [0].
Please reopen if your issue was not resolved by this.

Best wishes,
Mike

[0] https://deepthought.isc.org/article/AA-01091/0/ISC-DHCP-support-for-Standard-DDNS.html

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