ZyXEL Communications P-324, User Manual

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Prestige 324 User’s Guide
Wizard Setup 3-9
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. 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.
3.4.3 DNS Server Address Assignment
Use DNS (Domain Name System) to map a domain name to its corresponding IP address and vice versa, for
instance, the IP address of www.zyxel.com is 204.217.0.2. The DNS server is extremely important because
without it, you must know the IP address of a computer before you can access it.
The Prestige can get the DNS server addresses in the following ways.
1. 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 DHCP Setup.
2. If the ISP did not give you DNS server information, leave the DNS Server fields in DHCP Setup set to
0.0.0.0 for the ISP to dynamically assign the DNS server IP addresses.
3.4.4 WAN MAC Address
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned at
the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02.
You can configure the WAN port's MAC address by either using the factory default or cloning the MAC
address from a computer on your LAN. Once it is successfully configured, the address will be copied to the
"rom" file (ZyNOS configuration file). It will not change unless you change the setting or upload a different
"rom" file.
ZyXEL recommends you clone the MAC address from a computer on your LAN
even if your ISP does not require MAC address authentication.
Table 3-5 Example of Network Properties for LAN Servers with Fixed IP Addresses
Choose an IP address 192.168.1.2-192.168.1.32; 192.168.1.65-192.168.1.254.
Subnet mask 255.255.255.0
Gateway (or default route) 192.168.1.1(Prestige LAN IP)