TCP/IPv6 Configuration and Management Manual (G06.24+)

HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008
A-1
A IPv6 Fundamentals
This section describes these aspects of IPv6:
•
IPv6 Internet Addressing
•
Stateless Address Autoconfiguration on page A-11
•
Neighbor Discovery Protocol on page A-13
•
How IPv6 Tunnels Work on page A-18
IPv6 Internet Addressing
IPv6 internet addresses have 128 bits instead of the 32 bits of IPv4 addresses. This
subsection describes these aspects of IPv6 addressing:
•
Address Text Representation
•
Types of Addresses on page A-2
•
Address Prefixes on page A-8
•
Solicited-Node Multicast Address on page A-8
•
Default Addresses Available on IPv6 Nodes on page A-8
•
Address Resolution on page A-8
•
Address Assignment on page A-9
•
Aggregatable Global Unicast Address Format on page A-9
•
Aggregatable Testing Address Format on page A-10
Address Text Representation
You can use this syntax to represent IPv6 addresses as text strings:
x:x:x:x:x:x:x:x
The x is a hexadecimal value of a 16-bit piece of the address. For example, these
addresses are IPv6 addresses:
FEDC:BA98:7654:3210:FEDC:BA98:7654:3210
1070:0:0:0:0:800:200C:417B
IPv6 addresses can contain long strings of zero (0) bits. To make it easier to write
these addresses, you can use two colon characters (::) one time in an address to
represent 1 or more 16-bit groups of zeros. For example, you can compress the
second IPv6 address example:
1070::800:200C:417B