I appreciate the help everyone supplied, however that information was pretty much exactly what I already found online. For my specific case, using CentOS the main big issue was the -R port forwarding was not binding on all interfaces. To enable it I had to do two things:
1. change ssh configuration to enable GatewayPorts then restart SSH
2. explicitly enable 0.0.0.0
This link explains further:
https://superuser.com/questions/5885...open-to-public
R
Joe