ICMPv6 Redirection
Address Conflict Detection
IPv6 Stateless Auto-configuration
IPv6 Address Configuration
IPv6 Route Forwarding, Support Static Route Configuration
Configuration of various parameters for the IPv6 protocol
Diagnosis Tool ping ipv6
32.1.1 IPv6 Address Format
The basic format of an IPv6 address is X : X : X : X : X : X : X : X, where X is a 4 hex integers
(16 bits). Each digit contains 4 bits of information, each integer contains 4 hex digits and
each address contains 8 integers, so it is total for 128 bits. Some legal IPv6 addresses are
as follows:
2001:ABCD:1234:5678:AAAA:BBBB:1200:2100
800 : 0 : 0 :0 : 0 : 0 : 0 : 1
1080 : 0 : 0 : 0 : 8 : 800 : 200C : 417A
These integers are hex integers, where A to F denotes the 10 to 15 respectively. Each
integer in the address must be denoted and the starting 0 need not be denoted. Some IPv6
address may contain a series of 0 (such as the example 2 and 3). Once this condition occurs,
the ―: :‖ is allowed to denote this series of 0. Namely, the address 800:0:0:0:0:0:0:1 can be
denoted as: 800 :: 1
These two colons denote that this address can be extended to the complete 128-bit address.
In this way, the 16-bit group can be replaced with two colons only when they are all 0 and the
two colons can only present for one time.
In the mixture environment of IPv4 and IPv6, there is a mixture denotation method.The
lowest 32 bits in an IPv6 address can be used to denote an IPv4 address. The address can
be expressed in a mixture mode, i.e., X: X : X : X : X : X : d . d . d . d. Where, the X denotes a
16-bit integer, while d denotes an 8-bit decimal integer. For instance, the address 0 : 0 : 0 : 0 :
0 : 0 : 192 .168 . 20 : 1 is a legal IPv6 address. After the abbreviated expression method is
used, this address can be denoted as follows: : : 192 .168 . 20 . 1
For the IPv6 address is divided into two parts such as the subnet prefix and the interface
identifier, it can be denoted as an address with additional numeric value by the method like
the CIDR address. Where, this numeric value indicates how many bits represent the network
part (the network prefix). Namely the IPv6 node address indicates the length of the prefix,
and the length is differentiated from the IPv6 address by the slash. For instance:
12AB::CD30:0:0:0:0/60,The length of the prefix for the route in this address is 60 bits.
To Next Page
Loading...
Need help?
General