Broken PMTUD for . + TLD servers, was: Re: Smallest Transit MTU

Alexei Roudnev alex at relcom.net
Mon Jan 10 16:49:16 UTC 2005


Yes, it is correct.

> > 
> > It is a cisco pix, right?  Maybe just replacing the thing with a 1U
> > openbsd box will work wonders.
> 
> A PIX firewall can handle EDNS fine.  It just has to be told
> what is the maximum EDNS size being advertised by the internal
> clients.  The defaults assume there is no EDNS (e.g. 512).
> --
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org



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