[c-nsp] mtu size GRE tunnel

[Stefan Hegger]

Hi,

we found the problem. There was a rate limiting for icmp unreachables. When 
increasing this value all wokrs fine.

Thank for your answers.

Best Stefan

On Friday 25 May 2007 18:20, you wrote:
> try:
>
> ip tcp adjust-mss 1400
>
> on your tunnel interface. It'll save you from updating all your hosts.
>
> On 5/25/07, Stefan Hegger <Stefan.Hegger at lycos-europe.com> wrote:
> > Hi,
> >
> > hope you can help me to solve my problem. We are running some GSR's
> > (cisco 12008/GRP) with IOS Version 12.0(26)S6. We opened a GRE tunnel to
> > another location and have problems with the MTU size.
> >
> > It seems that the GSR's does not  return an ICMP message
> > indicating "fragmentation needed".
> >
> > When we decrease the MTU to 1400 on host, everything works fine.
> >
> > Best Stefan
> > --
> > Stefan Hegger
> > Internet System Engineer
> >
> > Lycos Europe GmbH
> > Carl-Bertelsmann Str. 29
> > Postfach 315
> > 33312 Gütersloh
> >
> > Phone:
> > Tel: +49 5241 8071 334
> > Fax: +49 5241 80671 334
> > Mobile: +49 170 1892720
> >
> >
> >
> > Sitz der Gesellschaft: Gütersloh
> > Amtsgericht Gütersloh, HRB 2157
> > Geschäftsführer: Christoph Mohn
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
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-- 
Stefan Hegger
Internet System Engineer

Lycos Europe GmbH
Carl-Bertelsmann Str. 29
Postfach 315
33312 Gütersloh 

Phone:
Tel: +49 5241 8071 334
Fax: +49 5241 80671 334
Mobile: +49 170 1892720

Sitz der Gesellschaft: Gütersloh
Amtsgericht Gütersloh, HRB 2157
Geschäftsführer: Christoph Mohn 

  <http://www.lycos-europe.com/L/A/>