Brian,
If you haven't consider this...make sure that the cron jobs aren't configured to execute on both machines at the same time. I'm not sure how you configured the intervals, but if you're able to set them 60-180 seconds apart, that should work.
My machine (and others that receive IPENCAP from ANY) may exhibit odd behavior if receiving duplicate routes...especially while the RIP44 daemon is executing the routes.
This also make me think about the ICMP Redirect thing...how bout changing the password to the routes on Old_AMPRGW, that will be a first phase-out for OPs running RIP44, as they should observe they can't send traffic to us any longer. After that, the only remaining OPs on Old_AMPRGW would be those who use the Munge Script method. At some point, you will turn off Old_AMPRGW anyway, something should have been noticed by that point in time.
- Lynwood KB3VWG
No issues with turning them on as long as the RIP content is the same...