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Unformatted text preview: oach is to use a universal interface identifier from another interface or one that is assigned to the node itself. using When this approach, no other interface connecting the same node to the same subnet prefix may use the same identifier. Hinden [Page 21] Standards Track RFC 4291 February 2006 IPv6 Addressing Architecture If there is no universal interface identifier available for use on the link, the implementation needs to create a local-scope interface identifier. a The only requirement is that it be unique within subnet prefix. a There are many possible approaches to select subnet-prefix-unique interface identifier. These include the following: Manual Configuration Node Serial Number Other Node-Specific Token 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 interfaces are added or deleted from the node. The selection of the appropriate algorithm is link and implementation dependent. defined The details on forming interface identifiers are in the appropriate "IPv6 over <link>" specification. strongly It is recommended that a collision detection algorithm be implemented as part of any automatic algorithm. Note: [EUI-64] actually def...
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