Setting the Internet (IP) Address
The IP address is a 32-bit number usually written in the form of four decimal fields separated by periods---for example, 192.9.200.1.
Part of the Internet address is the IP network number (IP network address), and part is the host address (IP host address). All machines on a given IP network use the same IP network number, and each machine has a unique IP host address. You set the subnet mask to specify how much of the address is network number and how much is host address. If you do not know the netmask, use the default.
Enter the MAC address of the PortMaster if you have more than one unconfigured PortMaster on the network and you want to configure only one. Use a colon to separate the numbers---for example, 11:ab:32.