When running no ip classless, the router will assume that if there is a route in it's tables for any subnet, it should know all routes within that class. You have routes for subnets that fall within 10.0.0.0 class A. Any traffic arriving at that rout...
Depending on the version of IOS you are using, you may want to try specific timers on the routes to detect when the TCP connection is down for a specific XOT route. This link may help:http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/12...
Be careful with your summarization. By stating you have 172.16.0.0/17, you are advertising an IP range of 172.16.0.0 through 172.16.127.255, well out of the range you specified. Assuming you have 172.16.0.0 not in use as the first subnet, you can sum...
Can you provide any details of your current configuration and the routing decision being made on translated packets returning to this router (i.e. next hop points the packet to serial int and gets routed via route map to loopback int)?