ZyXEL P-660HW-T1 User Manual download pdf (Page 64)

P-660H/HW/W-T Series User’ Guide

Chapter 4 LAN Setup 64

There are two ways that an ISP disseminates the DNS server addresses.

• The ISP tells you the DNS server addresses, usually in the form of an information sheet,

when you sign up. If your ISP gives you DNS server addresses, enter them in the DNS

Server fields in the LAN Setup screen.

• The Prestige acts as a DNS proxy when the Primary and Secondary DNS Server fields

are left blank in the LAN Setup screen.

4.2 LAN TCP/IP

The Prestige has built-in DHCP server capability that assigns IP addresses and DNS servers to

systems that support DHCP client capability.

4.2.1 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 Prestige. The Internet Assigned Number Authority (IANA) 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 three numbers specify the network number while the last number identifies an

individual computer on that network.

Once you have decided on the network number, pick an IP address that is easy to remember,

for instance, 192.168.1.1, for your Prestige, but make sure that no other device on your

network is using that IP address.

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 do

otherwise.

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ZyXEL P-660HW-T1 User Manual Page 64