Zte ZXR10 T1200, Руководство пользователя

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C h a p t e r
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IPv6 Basic Configuration
Table of Contents
IPv6 Address Overview........................................................ 3
Configuring IPv6 Address....................................................16
Configuring IPv6 Address Maintenance and Diagnosis .............17
IPv6 Address Configuration Examples...................................18
IPv6 Address Overview
IP version 6 is a new IP protocol, designed to replace IP version 4,
the Internet protocol that is predominantly deployed and exten-
sively used throughout the world.
However, the original design did not anticipate the following con-
ditions:
� Recent exponential growth of the Internet and the impending
exhaustion of the IPv4 address space.
� Growth of the Internet and the ability of Internet backbone
routers to maintain large routing tables.
�
Need for simpler auto configuration and renumbering.
� Requirement for security at the IP level.
� Need for better support to real-time delivery of data—also
called quality of service (
QoS ).
Note:
Features such as IP Security (IPSec) and QoS have been specified
for both versions of IP.
IPv6 features a huge address capacity up to 128 bits, which is
described as below:
� It provides 2128 different IPv6 addresses, that is, the
number of the allocable addresses around the world is
340,282,366,920,938,463,463,374,607,431,768,211,456.
� It provides 2.2×10
20
addresses per cm
2
if addresses are allo-
cated based on ground area.
The following are differences between IPv4 and IPv6 in header
format.
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