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interface identifier
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... Interface Identifiers ...
... interfaces on a link. They are required to be unique within a subnet
prefix. It is recommended that the same interface identifier not be
assigned to different nodes on a link ...
... interface's link-layer address. The same
interface identifier may be used on multiple interfaces on a single
node ...
... subnets.
Note that the uniqueness of interface identifiers is independent of
the uniqueness of IPv6 addresses. For example, a Global Unicast ...
... address may be created with a local scope interface identifier and a
Link-Local address may be created ...
... Link-Local address may be created with a universal scope interface
identifier.
For all unicast addresses ...
...
Modified EUI-64 format-based interface identifiers may have universal
scope when derived from a universal token (e.g., IEEE 802 ...
...
Modified EUI-64 format interface identifiers are formed by inverting
the "u" bit (universal/local bit ...
... company_id. Appendix A, "Creating Modified EUI-64 Format
Interface Identifiers", provides examples on the creation of Modified
EUI-64 format-based interface identifiers ...
... Interface Identifiers", provides examples on the creation of Modified
EUI-64 format-based interface identifiers.
The motivation for inverting the "u" bit ...
...
The motivation for inverting the "u" bit when forming an interface
identifier is to make it easy for system administrators to hand
configure non-global identifiers ...
... IPv6 nodes are not required to validate that interface identifiers
created with modified EUI-64 ...
... identifier is to allow development of future technology that can take
advantage of interface identifiers with universal scope.
The details of forming interface identifiers ...
... interface identifiers with universal scope.
The details of forming interface identifiers are defined in the
appropriate "IPv6 over <link ...
... Appendix A: Creating Modified EUI-64 Format Interface Identifiers ...
... are a number of approaches for creating Modified EUI-64 format
interface identifiers. This appendix describes some of these
approaches.
...
... EUI-64 identifier to an
interface identifier is to invert the "u" (universal/local) bit. An
example is a globally unique IEEE ...
... bits of the manufacturer-
selected extension identifier. The IPv6 interface identifier would
be of the form:
...
... bits of the manufacturer-
selected extension identifier. The interface identifier would be of
the form:
...
... a node), an implementation may use them to create interface
identifiers due to their availability and uniqueness properties.
Links ...
... There are a number of types of links that have link-layer interface
identifiers other than IEEE EUI-64 or IEEE 802 ...
... 8-bit node identifier of hexadecimal value 0x4F results in
the following interface identifier:
|0 1|1 3|3 4|4 6|
...
... links and configured
tunnels. Interface identifiers that are unique within a subnet
prefix must be chosen.
...
... identifier is available on a link, the preferred
approach is to use a universal interface identifier from another
interface or one that is assigned to the node ...
... identifier.
If there is no universal interface identifier available for use on
the link, the implementation needs to create ...
... the link, the implementation needs to create a local-scope interface
identifier. The only requirement is that it be unique within a
subnet prefix ...
... The subnet-prefix-unique interface identifier should be generated in
a manner such that it does not change after a reboot of a node or if
...
... algorithm is link and implementation
dependent. The details on forming interface identifiers are defined
in the appropriate "IPv6 over <link ...
... This document purposely continues the use of 0xFF and 0xFE
because it meets the requirements for IPv6 interface
identifiers (i.e., that they must be unique on the link), IEEE
...
... - Changed the text in Section 2.5.1 and Appendix A to refer to
the Modified EUI-64 format interface identifiers with the "u"
bit set to one (1) as universal.
...
... IPv6 nodes are not
required to validate that interface identifiers created in
Modified EUI-64 ...