what does networking pat stand for
The outside refers to the external-facing network interface, the one that receives ingress traffic. In the real world, it is not the case that NAT is simply using a single outside IP; translating traffic into internal IPs and ports. That's what your Linksys router does. Key Terms To Understanding NAT and PAT: NAT Short for Network Address Translation, an Internet standard that enables a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic. PAT Short for port address translation, a type of network address translation.