IPSec tunnel latency

Alex Satrapa grail at goldweb.com.au
Wed Jan 16 10:08:10 EST 2002

On Wednesday, January 16, 2002, at 06:43 , Howard Lowndes wrote:

> The only explanation I can come up with is that the PSTN modem is really
> barfing about handling protocol 50, or something in the circuits in
> between is barfing about protocol 50.
> Would anyone care to make a stab in the dark on this one before I do a
> 250km trip to replace the modem.

My stab in the dark - since the latency is almost doubled, could you be 
experiencing IP fragmentation?

Try changing the MTU to about half, if possible, for that link - or just 
try to figure out what the minimum MTU is for the whole connection.


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