VPN Tunnel Lan-to-Lan Problems

[srivero]

I have configured a lan-to-lan tunnel between a Cisco VPN3020 and a Check Point firewall. It worked correctly until today. The tunnel seem to be OK but the connection through it works just sometimes. I obtain this log in the VPN:

Dec 4 16:24:03 [172.29.1.2.2.2] 546125 12/04/2006 16:24:02.890 SEV=4 IKEDBG/97 RPT=668 (peer IP) Group [L2L:XX] QM FSM error (P2 struct &0xa5327c0, mess id 0x793ac9bd)!

We didn?t do any change in the configuration.

Any suggestion?

[morgsizun]

it looks like something has changed on the other peer about IKE or IPSec lifetime .

Try to enlarge them on your gateway (in IKE Proposals or in SAs)

Hope this helps..