[:S]zable reason.
One one end, the tunnel is terminated by a Cisco 3000 VPN concentrator, directly connected to an Astaro v3.209. The other end is a Cisco Pix Firewall. IPSec is in tunnel mode, algorithm is ESP, encryption=3DES, SA lifetime=3600, PFS and compression are= on.
Everytime the tunnel goes down, the router at the Cisco Pix end immediately loses the route to the Astaro end. Even if in the 'Up-State', the tunnel seems to be 'unavailable' to the router, therefore OSPF decides to mark the route as 'down'. On the Astaro, the tunnel goes into the 'trap' or even 'hold' state! Disabling and then again enabling the tunnel on the Astaro end SOMETIMES brings the tunnel back up!
What's wrong here? Did anybody have the same troubles on a net-to-net VPN connection?
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