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4. LAN Setup
This chapter describes how to configure LAN settings.
4.1 LAN 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.
The LAN screens can help you configure a LAN DHCP server and manage IP
addresses.
4.1.1 LANs, WANs and the ADSL Router
The actual physical connection determines whether the ADSL Router ports are LAN
or WAN ports. There are two separate IP networks, one inside, the LAN network;
the other outside: the WAN network as shown next:
4.2 DNS Server Address
DNS (Domain Name System) is for mapping a domain name to its corresponding IP
address and vice versa, for example, the IP address of www.atlantis-land.com is
204.217.0.2. The DNS server is extremely important because without it, you must
know the IP address of a machine before you can access it. The DNS server
addresses that you enter in the DHCP setup are passed to the client machines along
with the assigned IP address and subnet mask.
