Here is what my router info says
NAT Enabling
Before you enable this function, MAKE SURE YOU HAVE SET THE ADMINISTRATOR PASSWORD. Network Address Translation (NAT) is the method by which the router shares the single IP address assigned by your ISP with the computers on your network. Advanced users should only use this function. This function should only be used if your ISP assigns you multiple IP addresses or you need NAT disabled for an advanced system configuration. If you have a single IP address and you turn NAT off, the computers on your network will not be able to access the Internet. Other problems may also occur. Turning off NAT will disable your firewall functions.
I’ve assigned each computer a different IP address. It’s a patchwork system. Two PC’s use Linksys wireless adapters and the other three use NETGear adapters.