User's Manual

NBG-510S User’s Guide
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CHAPTER 8
WAN
This chapter shows you how to configure the WAN screens on the ZyXEL Device for Internet
access.
8.1 WAN IP Address Assignment
Every computer on the Internet must have a unique IP address. The ZyXEL Device can get an
IP address automatically if your ISP gives them out. If you have a static (fixed) IP address
from the ISP, you can manually assign it to the ZyXEL Device’s WAN port.
8.2 DNS Server Addresses
A DNS (Domain Name System) server maps domain names (like www.zyxel.com) to their
corresponding IP addresses (204.217.0.2 in the case of www.zyxel.com). This lets you use
domain names to access web sites without having to know their IP addresses. The ZyXEL
Device can receive the IP address of a DNS server automatically (along with the ZyXEL
Device’s own IP address). You can also manually enter a DNS server IP address in the ZyXEL
Device.
8.3 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.
If the Internet Service Provider (ISP) uses your computer’s MAC address in authenticating
your Internet access, have the ZyXEL Device use your computer’s MAC address. Once it is
successfully configured, the address will be copied to the ZyXEL Device’s configuration file.
It will not change unless you change the setting or upload a different configuration file.
It is
recommended that you change the MAC address prior to connecting the WAN port.
8.4 WAN DHCP Client Encapsulation
Select DHCP Client encapsulation in the Network > WAN > Internet Connection screen if
your ISP did not assign you a fixed IP address.