What You Need To Know - ZyXEL Communications LTE2566-M634 User Manual

7.1.2 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 LTE2566-M634.
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 LTE2566-M634 can get the DNS server addresses in the following ways.
The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you sign up.
1
If your ISP gives you DNS server addresses, manually enter them in the IPv6 DNS server fields.
If your ISP dynamically assigns the DNS server IP addresses (along with the LTE2566-M634's WAN IP
2
address), set the DNS server fields to get the DNS server address from the ISP.
IPv6 Introduction
IPv6 (Internet Protocol version 6), is designed to enhance IP address size and features. The increase in
IPv6 address size to 128 bits (from the 32-bit IPv4 address) allows up to 3.4 x 10
LTE2566-M634 can use IPv4/IPv6 dual stack to connect to IPv4 and IPv6 networks, and supports IPv6
rapid deployment (6RD).
IPv6 Addressing
The 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:). This is an
example IPv6 address 2001:0db8:1a2b:0015:0000:0000:1a2f:0000.
IPv6 addresses can be abbreviated in two ways:
• Leading zeros in a block can be omitted. So 2001:0db8:1a2b:0015:0000:0000:1a2f:0000 can be
written as 2001:db8:1a2b:15:0:0:1a2f:0.
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LTE2566-M634 User's Guide
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IP addresses. The