[c-nsp] Windows IPSEC VPN Client MTU issues when connecting to IOS

[Andrew Miehs]

On 04.09.2010, at 08:25, Marc Haber <mh+cisco-nsp at zugschlus.de> 
>>>> 
>> 
> 
>> or clamp mss to something like 1420 to be safe.
> 
> Now we're back to my original question, which is quoted above.
> 
http://www.cisco.com/en/US/docs/ios/12_2t/12_2t4/feature/guide/ft_admss.html#wp1060739

The above link should help you further

interface command 
   ip tcp adjust-mss 1420

Regards

Andrew