I've got a Cisco router that tunnels an IP block over 2 ISP (cable provider and T1 from telco)connections on a failover. If the cable link goes down, the IP block re-routes over the T1 link.
I'd like to get some sort of log/notification of these events to better track these cutovers. There are several router-router VPN's that re-key themselves, and I'd like to see if it corresponds to the ISP link re-homing when the cable link "blips".
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