I have successfully configured a VPN connection as described in:
One problem is remaining - when device disconnects ungracefully the VPN session keeps living on a VPN concentrator (Cisco PIX) blocking reconnection attempts. I have found an appropriate PIX configuration command:
isakmp keepalive threshold 10 retry 5
but the documentation says that both VPN endpoints must support them. So, how do I enable it on a Nokia device? What do I have to write in VPN-policy file?