Slow connection after successful vpn login

Nikos Mavrogiannopoulos nmav at
Fri Dec 20 03:22:51 EST 2013

On Thu, 2013-12-19 at 22:00 +0000, Marina Papoutsi wrote:
> Hi,
> I've been using openconnect successfully for a couple of months and 
> suddenly things don't work very well.
> I am still able to connect to ucl's using the attached 
> csd-wrapper that Kevin provided some time ago, when I had trouble 
> connecting.
> The trouble this time is that as soon as I login to vpn, my internet 
> connection slows down and I am no longer able to access any websites. 
> This is both for ucl internal and external websites.
> I can ssh to my ucl workstation, but I can't e.g. scp anything back. I 
> try, but it stalls. Needless to say, remote desktop doesn't work either.

 Most likely the fragmentation needed ICMP packets are filtered
somewhere in your path. Try adjusting manually the MTU until you find a
value that works for you.


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