There are occasions when we want to make a computer on a home/local area network (LAN) accessible externally on the Internet. For example, remotely connecting to a LAN computer using SSH or remotely accessing a web site residing on a LAN computer.
Each computer connected to a local network is assigned a dynamic IP address. On occasion it’s useful, if not essential, to assign a static IP address instead. As an example, port forwarding requires the destination computer on a local network to have a static IP address.
Using OS X Lion 10.7.1, I’ll describe two ways of assigning a static IP address to a computer on a local network.