Lans & Wans; 3.4.1 Lans, Wans And The Prestige; Vpi & Vci; Multiplexing - ZyXEL Communications Prestige 642 User Manual

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3.4 LANs & 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.

3.4.1 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.
3.5 VPI & VCI
Be sure to use the correct Virtual Path Identifier (VPI) and Virtual Channel Identifier (VCI) numbers
supplied by the Telephone Company. The valid range for the VPI is 1 to 255 and for the VCI is 32 to 65535
(1 to 32 is reserved for local management of ATM traffic). Please see VPI & VCI in Appendix B for more
information.
3.6

Multiplexing

There are two conventions to identify what protocols the virtual circuit (VC) is carrying. Be sure to use the
multiplexing method required by your ISP.
Internet Access
Prestige 642 ADSL Modem
Figure 3-2 LAN & WAN
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