[Openswan Users] Openswan to checkpoint tunnel closes. Solution ?

[Nicolas Ross]

I have a openswan to checkpoint tunnel that, after some time of inactivity, 
closes. If I ping, avec 10 to 20 seconds, the tunnel re-opens and stays up 
for 20 minutes of so.

I saw a reference to this problem in :

http://wiki.openswan.org/index.php/interoperatingCheckpoint

But the freeswan mailing list archives aern't available anymore...

Any hints on how to solve this ?

Nicolas