Bind Help - NS Lookups timeout

[David Botham]

bind-users-bounce at isc.org wrote on 02/19/2004 12:39:06 PM:
> Darren Nay wrote:
> >=20
> > One will work, and one won't.  This is just one example.  We have
> > several domains that -do- work, and several domains that -do not-.=20
> > This is, of course, causing a lot of problems.  Mostly with our email
> > servers which use our own DNS servers for domain lookups.  =20
> >=20
> > What I am trying to figure out is.. why do the internic root servers
> > (in named.root) work for some domains, and not others??  What am I
> > missing? =20
> 
> Any lookup I attempt to 208.253.183.35 times out.  I don't know if you =
> or
> your ISP do anything funny to ICMP echo requests, but when I attempt to 
=
> ping
> 208.253.183.35, I receive the following message:
> 
> 
> From 65.200.155.1 icmp_seq=3D1 Time to live exceeded

This message typically means there is a routing loop at 65.200.155.1 and 
the packet is bouncing off of that router and an adjacent router.

Good catch...

Dave...


> 
> It's possible that your seeing intermittent problems because you have a
> connectivity/routing problem somewhere upstream from you.  I am coming =
> from
> 217.23.160.0/20
> 
> Aaron
>