Network Address Translation (NAT)

Also known as: NAT

Network Address Translation is the process by which a local IP address is translated into a global IP address to provide network access to the “internal” local IP range. NAT provides multiple devices connectivity to the internet through a single public IP address. For instance, a locally routable network of might have access to the internet via a gateway at In this configuration, a user with IP would access the internet from the IP The gateway would be performing Network Address Translation to properly route traffic back to the initiating IP.

NAT has greatly extended the lifetime of IPv4 addresses as many networks now need only 1 publically routable IPv4 address. This serves as the gateway for a local network. That local network can be arbitrarily large.

Setting up VNS3 as a (cheaper) NAT

Its easy to set up VNS3 as a NAT.