Chapter 6 WAN
LTE3301-M209 User’s Guide
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6.3 What You Need To Know
The information in this section can help you configure the screens for your WAN connection, as well as
enable/disable some advanced features of your Zyxel Device.
3G
3G (Third Generation) is a digital, packet-switched wireless technology. Bandwidth usage is optimized as
multiple users share the same channel and bandwidth is only allocated to users when they send data. It
allows fast transfer of voice and non-voice data and provides broadband Internet access to mobile
devices.
4G
4G is the fourth generation of the mobile telecommunications technology and a successor of 3G. Both
the WiMAX and Long Term Evolution (LTE) standards are the 4G candidate systems. 4G only supports all-
IP-based packet-switched telephony services and is required to offer gigabit speed access.
DNS Server Address Assignment
Use Domain Name System (DNS) 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 Zyxel Device 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, manually enter them in the DNS server fields.
2
If your ISP dynamically assigns the DNS server IP addresses (along with the Zyxel Device’s WAN IP
address), set the DNS server fields to get the DNS server address from the ISP.
Multicast
Traditionally, IP packets are transmitted in one of either two ways - Unicast (1 sender - 1 recipient) or
Broadcast (1 sender - everybody on the network). Multicast delivers IP packets to a group of hosts on
the network - not everybody and not just 1.
Figure 30
Multicast Example
