I'm trying to configure an L2L IPSEC vpn between an RVL200 and an ASA 5510. The VPN gets established and works great for 1-2 days, but eventually the RVL starts re-establishing the session at IKE phase 1 and disconnecting immediately after the second phase 2 SA establishes. It does this repeatedly, about every 6 seconds. Eventually the tunnel will stay up, but the ASA will no longer send any traffic through it (even though the routes and access lists are unchanged).
Is there a reason why the RVL200 would be doing this?
I'm using a DPD interval of 10 seconds and 28,800 second keepalives, and I can provide debug logs and configs if needed.