ZyXEL Communications NXC8160 User Manual

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NXC-8160 User’s Guide
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LAN Screen
This chapter describes how to configure LAN settings.  
3.1  LAN and WAN
A network is a shared communication system to which many computers are attached. 
The Local Area Network (LAN) includes the computers and networking devices (such as the 
NXC-8160) in your home or office that you connect to a modem or router’s LAN ports.  
The Wide Area Network (WAN) is another network (most likely the Internet) that you connect 
to a modem or router. The LAN and the WAN are two separate networks. The following 
graphic gives an example. 
Figure 7   LAN and WAN 
3.2  IP Address and Subnet Mask
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.
Where you obtain your network number depends on your particular situation. If the ISP or 
your network administrator assigns you a block of registered IP addresses, follow their 
instructions in selecting the IP addresses and the subnet mask.
If the ISP did not explicitly give you an IP network number, then most likely you have a single 
user account and the ISP will assign you a dynamic IP address when the connection is 
established. If this is the case, it is recommended that you select a network number from 
192.168.0.0 to 192.168.255.0 and you must enable the Network Address Translation (NAT) 
feature of the connected router. The Internet Assigned Number Authority (IANA) reserved 
this block of addresses specifically for private use; please do not use any other number unless