XP Network Protocols

Im not going to explain everything about Protocols that is way out of scope of this guide.

There are three main Protocols : TCP/IP, IPX/SPX and NETBEUI

TCP/IP :

Is automatically installed, can't be un-installed, and is used by default for all networking functions.Windows XP provides one other supported protocol -- IPX/SPX -- and one unsupported protocol, NetBEUI.

By default, XP configures TCP/IP to obtain an IP address automatically. If there's a DHCP server on the network, it will assign the IP address and other TCP/IP settings to the connection. Otherwise, Windows XP will use Automatic Private IP Addressing to assign an IP address to the connection.

By default, XP configures TCP/IP to obtain an IP address automatically. If there's a DHCP server on the network, it will assign the IP address and other TCP/IP settings to the connection. Otherwise, Windows XP will use Automatic Private IP Addressing to assign an IP address to the connection.
This default configuration should work, unchanged, to connect a Windows XP computer to a network that uses TCP/IP for File and Printer Sharing in these common configurations:

Using an Internet sharing program or a hardware router protects the local area network from access by other Internet users, so it's safe to use TCP/IP for File and Printer Sharing on the LAN. The computers have private IP addresses that aren't accessible from the Internet. No other protocol is needed.
If your network uses static IP addresses, click Use the following IP address -- 192.168.0.3 and enter the configuration information. For example, here are settings for a network that uses a proxy server at IP address 192.168.0.1 for Internet access.