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Prestige 791R G.SHDSL Router
LAN 6-1
Chapter 6
LAN
This chapter shows you how to configure the LAN settings for your Prestige.
6.1 LAN Overview
This section describes how to configure the Prestige for LAN connections.
6.1.1 IP Address and Subnet Mask
Similar to the way houses on a street share a common street name, the machines on a LAN also 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 (ignoring the trailing
zero). The Internet Assigned Number Authority (IANA) has reserved this block of addresses specifically
for private use; please do not use any other number unless you are told otherwise. Let’s say you select
192.168.1.0 as the network number; which covers 254 individual addresses, from 192.168.1.1 to
192.168.1.254 (zero and 255 are reserved). In other words, the first 3 numbers specify the network number
while the last number identifies an individual computer on that network.
The subnet mask specifies the network number portion of an IP address. Your Prestige will compute the
subnet mask automatically based on the IP address that you entered. You don’t need to change the subnet
mask computed by the Prestige unless you are instructed to.