classless delegation: bad referral

Kevin Darcy kcd at daimlerchrysler.com
Fri Dec 15 16:08:48 UTC 2000


The problem appears to be fixed, now that you incremented the serial number for
the 226.130.in-addr.arpa zone.


- Kevin

torben fjerdingstad wrote:

> Kevin Darcy wrote:
>
> > Joseph S D Yao wrote:
> > > On Thu, Dec 14, 2000 at 05:06:40PM +0100, torben fjerdingstad wrote:
> > > > I want to delegate the lower half of 209.226.130.in-addr.arpa to
> > > > post.kapow.dk.
> > > > I told them to name their zone 0.209.226.130.in-addr.arpa.
> > > >
> > > > On ns-soa.darenet.dk, I have delegated 209.226.130.in-addr.arpa to
> > > > myself:
> > > >
> > > > $ORIGIN 226.130.in-addr.arpa
> > > > 209             IN      NS      ns-soa.darenet.dk.
> > > >
> > > > And in the 209.226.130.in-addr.arpa zone file, I delegate
> > > > 0.209.226.130.in-addr.arpa to them:
> > > >
> > > > $ORIGIN 209.226.130.in-addr.arpa
> > > > 0                       IN      NS      post.kapow.dk.
> > > >                         IN      NS      mr.tv2.dk.
> > > > $GENERATE 1-126 $ CNAME $.0
> > >
> > > You can't delegate subdomains in exactly this way.
> >
> > Why not? 0.209.226.130.in-addr.arpa is delegated, all of the
> > *.209.226.130.in-addr.arpa aliases, from 1 through 126, point into that
> > delegated zone. Sure, it doesn't follow the usual RFC 2317-inspired naming
> > conventions, but it should still work.
> >
> > I think the real problem is the one I identified earlier, i.e. a stale
> > slave for 226.130.in-addr.arpa.
>
> You think that mimer.snet.uvm.dk is the master for 226.130.in-addr.arpa
> and ns-soa.darenet.dk is a stale slave.
> How do you get that information? As a matter of fact, ns-soa.darenet.dk
> is the master. So is can't be a stale slave.
>
> ns-soa.darenet.dk is the master of:
> 226.130.in-addr.arpa
> 209.226.130.in-addr.arpa
>
> And it delegates 0.209.226.130.in-addr.arpa to post.kapow.dk.
> $ORIGIN 209.226.130.in-addr.arpa
> 0                       IN      NS      post.kapow.dk.
>                         IN      NS      mr.tv2.dk.
> $GENERATE 1-126 $ CNAME $.0
>
> It seems to work, but post.kapow.dk reports:
>
> bad referral (226.130.in-addr.arpa !< 209.226.130.in-addr.arpa)
>
> Why? I can't spot my error.
>
> --
> Med venlig hilsen / Regards
> Netdriftgruppen / Network Management Group
> UNI-C
>
> Tlf./Phone   +45 35 87 89 41        Mail:  UNI-C
> Fax.         +45 35 87 89 90               Bygning 304
> E-mail: torben.fjerdingstad at uni-c.dk       DK-2800 Lyngby






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