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

IPv6 Fundamentals

HP NonStop TCP/IPv6 Configuration and Management Manual—524523-008

A-4

Types of Addresses

These list describes commonly used unicast addresses and their values:

•

Unspecified address

Indicates the absence of an address, and is never assigned to an interface. The

unspecified address has the value 0:0:0:0:0:0:0:0 in the normal form or :: in the

compressed form.

•

Loopback address

Used by a node to send IP datagrams to itself, and is typically assigned to the

loopback interface. The IPv6 loopback address has the value 0:0:0:0:0:0:0:1 in the

normal form or ::1 in the compressed form.

•

IPv6 addresses with embedded IPv4 addresses

Used in mixed IPv4 and IPv6 environments, and can be either of these:

•

IPv4-compatible IPv6 address

Used by IPv6 nodes to tunnel IPv6 packets across an IPv4 routing

infrastructure. The IPv4 address is carried in the low-order 32-bits. The format

of this address is:

Figure A-3. Creating an Interface ID from a MAC Address

VST146.vsd

0A 1E00 2B

FF FE

36 70

00 2B 36 70 1E

08 00 2B FF FE 36 70 1E

Manufacturer's DataCompany ID

Expand to an

EUI-64

Invert the

universal/

local bit