AW: ipv6 PTR in zone file

Joseph S D Yao jsdy at tux.org
Sun Apr 17 06:51:24 UTC 2011


On Tue, Apr 12, 2011 at 11:21:14AM +0200, Marco Davids (SIDN) wrote:
...
> Or do it 'the BIND way':
> 
>  dig  -x 2001:7b8:c05::80:1 | grep ip6.arpa | tail -1 | awk '{print $1}'
...

If things work right, this seems to give the name of the smallest
existing enclosing zone (from the SOA or NS record), not the entry in
the zone.  Wasn't the latter what was desired?  And what if you are
creating the new zone?

As 'arpaname' given the above, returns:

1.0.0.0.0.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.0.C.0.8.B.7.0.1.0.0.2.IP6.ARPA

then the entry

1.0.0.0.0.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0	PTR	sidn.bip.bit.nl.

in the 5.0.c.0.8.b.7.0.1.0.0.2.ip6.arpa. zone file
("zone.2001:07b8:0c05"?) may be the best we can do in general.

In specific, we could enter:

$ORIGIN 0.0.0.0.0.0.0.0.0.0.0.0
1.0.0.0.0.8.0.0		PTR	sidn.bip.bit.nl.
...
$ORIGIN 5.0.c.0.8.b.7.0.1.0.0.2.ip6.arpa.
if we have multiple addresses in that subnet.

But M. de Nostredame already is aware of how to do this.

Using one of the existing IPAM (IP Address Management) appliances might
be what you need.  BT has one that looked good.


--
/*********************************************************************\
**
** Joe Yao				jsdy at tux.org - Joseph S. D. Yao
**
\*********************************************************************/



More information about the bind-users mailing list