RE: Cisco VPN and Direcway Satellite Service

Jason,
The satellite links are generally having "abnormal delays". I have seen
in some cases.
So, in your case the VPN link is simply timing out (hence disconnected)
after X interval.
You can confirm it by observing extended ping to your central network
from the remote end for some time.
If you can increase some timeouts for the VPN session, it should work.


Regards
Anand

-----Original Message-----
From: Jason Brooks [mailto:brooksje@longwood.edu] 
Sent: Wednesday, September 15, 2004 12:39 AM
To: firewalls@securityfocus.com
Subject: Cisco VPN and Direcway Satellite Service

Our department has recently been asked to dig into some issues that have
arisen when a user is connecting to our network from home with a VPN
session
while on a Direcway satellite link.  What is happening is that the user
is
regularly disconnected (X interval) from the VPN link.  There is nothing
'abnormal' from the Cisco Concentrator end, that we can see.  

We've done some googling that have produced inconclusive results, at
best.
They range from some institutions saying "We don't support VPN
connections
via satellite ISPs", to "They work, but are slow".  Nothing indicates
that
there are others experiencing the same phenomenon that our user reports.

So, has anyone run into this, or similar circumstances?  Did you have to
tweak any client settings?  Any Cisco Concentrator settings?  

Thanks for any input.

Jason

Jason Brooks
Information Security Technician
Longwood University
201 High Street
Farmville, VA 23909
(434) 395-2034
mailto:brooksje@longwood.edu