The VPN client connects to our gateway then drops the link soon after 15-30 
seconds.
If I run a ping to a server on the other side of the gateway the link does not 
drop.
I have captured two traces with data.

1.       Where it drops

2.       Where I have a ping running in background and it does not drop.
I prefer not to post the traces to a mailing list so send me an email to send 
them to if you want them.
When testing no other vpn clients were installed on the machines only Shrew 
soft.

I have hunted through the mailing list archives and notice a few that seem to 
have similar behaviour.
Though no one states that traffic keeps it alive.
Stopping the ping after it is stable [1-2 min] appears to cause it to drop 
eventuall, but how long it takes seems to vary a lot and can take over an hour 
easily.

Connecting with Cisco's vpn client from XP Pro 32bit or Windows 7.0 32bit does 
not drop out like the shrew soft client.
I can provide you a test account to connect to our router if it would help you 
to look at the behaviour.

Windows OS Version = Windows 7.0 64 bit. [note have tested on XP Pro 32bit as 
well same behaviour]
VPN Client Version  = 2.1.6-beta4 and 2.1.6-beta7 both exhibit behaviour.
Gateway Make/Model = Cisco ASA 5505
Gateway OS Version =   ASA Version 8.2(2)
ASDM Version 6.2(5)

The Cisco was updated a few weeks ago but did  not change the connection 
behaviour.
It dropped before the update and after the update same visible behaviour.

Robin.




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