axfr fails, telnet to 53 works

Barry Margolin barmar at
Sat Jun 11 01:06:43 UTC 2005

In article <d8avb4$j4l$1 at>, /dev/rob0 <rob0 at> 

> Sorry, this might be a routing or firewall issue, but I'm hoping perhaps 
> someone here can help anyway. I maintain my own internal DNS over a 
> network of VPN links. The master server died recently and I replaced it 
> with a machine on another IP. But I did bind the old IP,, to 
> the new master.
> The client at can't do a zone transfer. All the following 
> commands are on that machine. It can route there through the VPN:

Path MTU Discovery often fails through VPNs.  Maybe the old master 
server had its MTU reduced to accomodate this.  Try setting the MTU on 
the new master to 1400.

Barry Margolin, barmar at
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

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