Introduction To Ipv6; Ipv6 Supported By The Ar150/200 - Huawei AR150 series Configuration Manual

Huawei AR150&200 Series Enterprise Routers
Configuration Guide - IP Service

3.1 Introduction to IPv6

IPv6 is an upgraded version of IPv4 and solves many problems with IPv4.
Internet Protocol Version 6 (IPv6), also called IP Next Generation (IPng), is the standard network
protocol of the second generation. It is a set of specifications designed by the Internet
Engineering Task Force (IETF). IPv6 is the upgraded version of IPv4. The most remarkable
difference between IPv6 and IPv4 is that the IP address lengthens from 32 bits to 128 bits.

3.2 IPv6 Supported by the AR150/200

The basic functions of IPv6 include IPv6 address configuration, IPv6 neighbor discovery, router
advertisement, ICMPv6 packet control, and Path MTU (PMTU) configuration. The IPv6
protocol stack is a support for routing protocols and application protocols.
The AR150/200 supports the IPv6 protocol suite and TCP6 protocol suite.
AR150/200 supports IPv6 on the following interfaces:
l
l
l
l
l
l
l
l
IPv6 Address
A 128-bit IPv6 address has the following formats:
l
l
An IPv6 address can be divided into two parts:
Issue 02 (2012-03-30)
Ethernet interfaces and sub-interfaces
Gigabit-Ethernet interfaces and sub-interfaces
Serial interfaces (Only the Serial interfaces configured with PPP or HDLC as the link
protocol support IPv6.)
POS interfaces (Only the POS interfaces configured with PPP or HDLC as the link protocol
support IPv6.)
Tunnel interfaces
Loopback interfaces
Eth-Trunk interfaces, Eth-Trunk sub-interfaces, and IP-Trunk interfaces
VLANIF interfaces
X:X:X:X:X:X:X:X
In this format, a 128-bit IP address is divided into eight groups. The 16 bits of each group
are represented by four hexadecimal characters, that is, 0 to 9, and A to F. The groups are
separated by colons. Every "X" represents a group of hexadecimal values.
X:X:X:X:X:X:d.d.d.d
This format is for the following types of addresses:
– IPv4-compatible IPv6 address
– IPv4-mapped IPv6 address
In this type of address, "X" represents the first six groups of numbers. Each "X" stands for
16 bits that are represented by hexadecimal numbers. "d" represents the subsequent four
group of numbers. Each "d" stands for eight bits that are represented by decimal numbers.
"d.d.d.d" is a standard IPv4 address.
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3 Basic IPv6 Configuration
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