(racoon 835) Problems with racoon and generate_policy on

Hi!
 
I have a problem using linux kernel 2.6 and racoon 0.3.3 in a roadwarrior 
setup. The server is configured to generate the policy for the roadwarrior 
using "generate_policy on;". This works as expected for the first time. The 
lifetimes for the ISAKMP-SA is one minute and for the IPsec-SA 5 minutes (for 
testing purposes).
 
After approx. 4 minutes both a new ISAKMP-SA and a new IPsec-SA are 
negotiated. But racoon does not generate a new or update the old policy. 
Therefore, the policy is deleted with the old and no longer valid IPsec-SA. 
This results in NO policy on the server and therefore a secure connection is 
no longer possible.
 
How can I configure racoon to generate either a persistant policy or to alter 
the lifetime of the existing policy?

regards,
Joerg