Someone else posted this, I think this is what you are looking for:ip sla 1 icmp-echo ip1 source-interface FastEthernet1 timeout 1000 threshold 30 frequency 3 ip sla schedule 1 life forever start-time now ip sla 2 icmp-echo ip2 source-interface FastE...
Ok what you will need to do is configure both static and dynamic Nat on each interface. I know I have done that on 1 wan routers before but using the same configs I have not been able to recreate this on an 1811. I have had to chose one or the other ...
Please also consider that this may not give you the failover you desire. When you translate over to ISP2's address space and that may keep the connections up, but new connections will fail and the target IP you had on ISP1 will not be availible (ISP1...