Prestige 641 ADSL Internet Access Router
3.5LANs & WANs
A LAN (Local Area Network) is a computer network limited to the immediate area, usually the same building or floor of a building. A WAN (Wide Area Network), on the other hand is an outside connection to another network or the Internet.
3.5.1 LANs, WANs and the Prestige
The actual physical connection determines whether the Prestige 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.
| LAN | WAN | ||||
| ||||||
|
|
| WAN IP |
| ||
| LAN IP |
|
| INTERNET | ||
|
| |||||
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| Prestige |
| |||
|
|
| ||||
| The interface to | The interface to the Internet or a remote | ||||
| the LAN is | node is the ADSL port | ||||
| Ethernet |
| ||||
|
| |||||
|
|
|
|
|
|
|
Figure 3-3 LAN & WAN IPs
Internet Access |