It didn't work. I have RAID failure to deal with and have to drive down tonight If I'm lucky I'll get three servers back online.

THANK YOU for your patience and help. Once you pointed it out my brain clicked and said, "I know that. Duh!"

We can mark this as solved. yum clean all is a different topic and moot anyway. I couldn't get to the DC today but will tomorrow. The highest I can go during migration is CentOS 6.9-64 and I'll 1. Change the OS and 2. change the CPU's to dual core. This server is now 10 years old but still works fine for the small clients we have. They currently have dual Opteron single core but we have the 279 dual core that operate at double the speed. With hardware RAID 1 and good RAM they run great for their time. The servers I'm installing at our new DC are dual XEON 12-core.

More importantly though I'd like to thank both of you for your patience. I thought I was on top of this until you pointed out what I already know -- you cannot specify two gateways. But you could on CentOS 5.x and below because I've done and it never got caught in a pickle. The thing is that i KNOW you can't do this. Windows would have balked at it.

Thank yoou again. A lesson learned and respected.