Re: 9/9/2004 IP6.INT Removal (Was: 9/9/2006 : ip6.int shutdown?)

[Daniel Roesen <dr@cluenet.de>]

On Thu, Jul 29, 2004 at 03:00:28AM +0200, Daniel Roesen wrote:
> NS list summary for e.f.f.3.ip6.int. from parent (ip6.int.) servers
>   == flag.ep.net. imag.imag.fr. ns3.nic.fr.
>   == sonata.hexago.com. y.ip6.int. z.ip6.int.
> soa @flag.ep.net. for e.f.f.3.ip6.int. serial: 2002091315
> soa @imag.imag.fr. for e.f.f.3.ip6.int. serial: 2002091315
> soa @ns3.nic.fr. for e.f.f.3.ip6.int. serial: 2004072801
> soa @sonata.hexago.com. for e.f.f.3.ip6.int. serial: 2004072801
> soa @y.ip6.int. for e.f.f.3.ip6.int. serial: 2002091315
> soa @z.ip6.int. for e.f.f.3.ip6.int. serial: 2002091315
> WARN: Found 2 unique SOA serial #'s for e.f.f.3.ip6.int.

BTW... _this_ could be, because sonata.hexago.com. does
load their .arpa zone file as .int master zone:

$ dig @ns3.nic.fr. e.f.f.3.ip6.int. SOA +norec +short
sonata.hexago.com. support.eng.hexago.com. 2004072801 10800 900 259200 86400
$ dig @ns3.nic.fr. e.f.f.3.ip6.arpa. SOA +norec +short
sonata.hexago.com. support.eng.hexago.com. 2004072801 10800 900 259200 86400

==> ns3.nic.fr thinks sonata.hexago.com is master for .int...
flag.ep.net disagrees:

$ dig @flag.ep.net. e.f.f.3.ip6.int. SOA +norec +short
dot.ep.net. hostmaster.ep.net. 2002091315 900 900 4800 9600

So not only does sonata.hexago.com. load the .arpa zone also as .int
zone, but also ns3.nic.fr sync .int from sonata.hexago.com as master
instead of dot.ep.net.

Then again, dot.ep.net doesn't feel authoritative for e.f.f.3.ip6.int
at all:

$ dig @dot.ep.net. e.f.f.3.ip6.int. SOA +norec
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17674
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 7

Given the fact that e.g. flag.ep.net still is authoritative, and given
the very short expiry timeout of the zone, I guess that dot.ep.net isn't
the real master anyway... as the zone would have timed out already if
it were (master being lame should result in slaves dropping authority
after expiry time passed, IIRC).


Regards,
Daniel