Quick look at IP addresses

If you need to configure TCP/IP networking, each host must have a unique IP address.

An IP address is a 32-bit number, usually written as decimal numbers (for each byte) and separated with a period:

192.168.0.1

Each address consists of a network part and a host part. The subnet mask defines how the address is divided:

IP Address: 192.168.0.10

Subnet Mask: 255.255.255.0

With this mask, the first three numbers identify the network, and the last number identifies the host.

Some address ranges are reserved for so-called private networks. These IP addresses do not work in the public Internet:

10.0.0.0-10.255.255.255

172.16.0.0-172.31.255.255

192.168.0.0-192.168.255.255

You can view the current configuration on Windows NT using:

ipconfig

This shows the assigned IP address, subnet mask, and default gateway.

You can read more about private IP addresses from RFC 1918. Hope this helps!