ZyXEL Communications Prestige 645R - Manual (Page 51)

Prestige 645 ADSL Internet Access Router
Internet Access 3-9
3.5 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.
3.5.1 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.
Figure 3-6 LAN & WAN IPs
3.6 VPI & VCI
Be sure to use the Virtual Path Identifier (VPI) and Virtual Channel Identifier (VCI) numbers supplied by
your 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 Appendix VPI and VCI for more information.
3.7 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.