North American Network Operators Group
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Re: IPIP-tunnel with 1500 MTU

  • From: Mikael Abrahamsson
  • Date: Thu Jan 11 15:10:34 2001 
On Thu, 11 Jan 2001, Brian Moore wrote:

> Who is setting the DF flag and why?  If an end host is doing it,

All windows machines do this by default.

> check to see if P-MTUd is set on the end host and turn it off.
> Several OSs try to do this by default (Solaris, HP-UX, etc).
> >From my past experience with P-MTUd (dates back a few years),
> almost no vendor understood how to implement it.

http://www.cisco.com/warp/public/105/56.html

Even cisco recognises the problem and offer no solution :/

-- 
Mikael Abrahamsson    email: [email protected]