Allow P60X router to actually route with NO NAT

Please allow the "Pro" series router to route without NAT.  This is expected in a "Pro" environment.  We have many clients that have static ip address ranges and would love to use this router, but the lack of routing without NAT prevents us from ever recommending or using this router in these environments.

Please stop thinking like your old home appliances, and starting thinking about SMB environments.  Automatic NAT is great for home when you have a single, usually dynamic ip address.  It is NOT appropriate when you have a business environment with multiple static ip addresses.