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IPv6 address
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... architecture of the IP
Version 6 protocol. It includes the basic formats for the various
types of IPv6 addresses (unicast, anycast, and multicast ...
... addresses). A
single interface may also have multiple IPv6 addresses of any type
(unicast, anycast ...
...
There are three conventional forms for representing IPv6 addresses as
text strings:
...
...
2. Due to some methods of allocating certain styles of IPv6
addresses, it will be common for addresses to contain long strings
of zero bits ...
... Classless Inter-Domain
Routing (CIDR) notation [CIDR]. An IPv6 address prefix is
represented by the notation:
...
...
ipv6-address is an IPv6 address in any of the notations listed
in Section 2.2.
...
... unicast. There are also some special-purpose subtypes
of Global Unicast, such as IPv6 addresses with embedded IPv4
addresses. Additional address types or subtypes can be defined in
...
... IPv6 nodes may have considerable or little knowledge of the internal
structure of the IPv6 address, depending on the role the node plays
...
... previous paragraphs, nodes should not make any assumptions about the
structure of an IPv6 address.
...
... Note that the uniqueness of interface identifiers is independent of
the uniqueness of IPv6 addresses. For example, a Global Unicast
address ...
... addresses that start with binary 000 are
the IPv6 address with embedded IPv4 addresses described in Section
2.5.5. An example of global addresses ...
... IPv6 Addresses with Embedded IPv4 Addresses ...
... IPv4-Compatible IPv6 Address ...
...
The "IPv4-Compatible IPv6 address" was defined to assist in the IPv6
transition. The format of the "IPv4-Compatible IPv6 address ...
... IPv6 address" was defined to assist in the IPv6
transition. The format of the "IPv4-Compatible IPv6 address" is as
follows:
...
... Note: The IPv4 address used in the "IPv4-Compatible IPv6 address"
must be a globally-unique IPv4 unicast address ...
...
The "IPv4-Compatible IPv6 address" is now deprecated because the
current IPv6 transition mechanisms no longer use these addresses ...
... IPv4-Mapped IPv6 Address ...
...
A second type of IPv6 address that holds an embedded IPv4 address is
defined. This address type ...
... addresses of
IPv4 nodes as IPv6 addresses. The format of the "IPv4-mapped IPv6
address" is as follows:
...
... IPv4 nodes as IPv6 addresses. The format of the "IPv4-mapped IPv6
address" is as follows:
| 80 bits ...
... Node multicast address corresponding to
the IPv6 address 4037::01:800:200E:8C6C is FF02::1:FF0E:8C6C. IPv6
addresses that differ only in the high-order bits (e.g., due to
...
... multicast address corresponding to
the IPv6 address 4037::01:800:200E:8C6C is FF02::1:FF0E:8C6C. IPv6
addresses that differ only in the high-order bits (e.g., due to
multiple high-order prefixes ...
...
The "IPv4-Compatible IPv6 address" is deprecated by this document.
The IANA should continue to list the address ...
...
[5] 0000::/96 was previously defined as the "IPv4-Compatible IPv6
address" prefix. This definition has been deprecated by RFC
4291draft ...
...
The IANA has updated the references for the IPv6 Address Architecture
in the IANA registries ...
... - Added clarification to Section 2.5 that nodes should make no
assumptions about the structure of an IPv6 address.
- Changed the text in Section 2.5.1 and Appendix A to refer to
...