ZyXEL N4100 User Guide - Page 71
WAN/LAN, 5.1 Overview, 5.1.1 What You Can Do in this What You Need to Know
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CHAPTER 5 WAN/LAN 5.1 Overview A Local Area Network (LAN) is a shared communication system to which many computers are attached. A LAN is a computer network limited to the immediate area, usually the same building or floor of a building. A WAN (Wide Area Network) is an outside connection to another network or the Internet. It connects your private networks, such as a LAN, and other networks, so that a computer in one location can communicate with computers in other locations. 5.1.1 What You Can Do in this Chapter Use the WAN/LAN screen (Section 5.2 on page 73) to set the LAN IP address and subnet mask of your N4100, and configure the WAN settings on the N4100 for Internet access. 5.1.2 What You Need to Know The following terms and concepts may help as you read through the chapter. IP Address Similar to the way houses on a street share a common street name, so too do computers on a LAN share one common network number. This is known as an Internet Protocol address. Subnet Mask The subnet mask specifies the network number portion of an IP address. Your N4100 will compute the subnet mask automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the N4100 unless you are instructed to do otherwise. N4100 User's Guide 71