I have an 831 router with a cable connection to the internet. I would like to add a data/voice T1 as a backup internet connection. I'm going to try using Reliable Static Routing Backup Using Object Tracking but I can't find examples with NAT in place.
This is what I would use based on the documents I've found:
ip sla 1
icmp echo 18.104.22.168
ip sla schedule 1 life forever start-time now
track 123 rtr 1 reachability
access-list 100 permit icmp any host 22.214.171.124 echo
route-map redundant permit 10
match ip add 100
set int ethernet 1 null 0
ip local policy route-map redundant
ip route 0.0.0.0 0.0.0.0 126.96.36.199 track 123
ip route 0.0.0.0 0.0.0.0 188.8.131.52
The problem is that I'm using NAT statements in the current configuration. Will applying the above as written work or do I need to tweak it?