Adding a second router to Fios Network

Will the Fios Actiontec router NAT/Route from another network connected?

I have my primary FIOS Network 192.168.1.0

I have connected an enterprise Router to the FIOS Router using address 192.168.1.254.

The Enterprise Router has another network with address 10.255.128.0

I added the routes to the FIOS Network so I can ping fine between 192.168.1.x and 10.255.128.x.  However I cannot ping anything on the internet from 10.255.128.x.  It seems the Actiontec router is only NAT 192.168.1.x.  Is there a way to tell the Actiontec to NAT other subnets?

Thanks, Jim