[Openswan Users] Tunnel goes down for no reason

Roland Plüss roland at rptd.ch
Sat Sep 8 09:06:04 EDT 2007

I have a static tunnel which connects a home network to a company
network. The tunnel works in both directions the way it should. Now the
problem is that after some time of not being used ( for example over
night ) the tunnel suddenly goes down. This means the tunnel is reported
to be up put no ping goes through from the home network to the company
network. Once I send a ping from the company network over to the home
network the tunnel is again open in both directions.

Anybody knows what could cause such a problem? I put in the ipsec.conf
the left side as the machine with the config file ( so at home left is
home and at the company company is left ). Can this cause troubles? Is
there an option I can use to force the tunnel to stay open in both
directions all the time? How comes one way can go down and the other way
stays open? I'm a bit confused on this one and don't know where to start
looking for the problem.

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