RFC 4291:IP Version 6 Addressing Architecture
RFC-Ref

interface-local


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... 0 reserved 1 Interface-Local scope 2 Link-Local scope ...
... F reserved Interface-Local scope spans only a single interface on a node ...
... group of all IPv6 nodes, within scope 1 (interface-local) or 2 (link-local). ...
... group of all IPv6 routers, within scope 1 (interface-local), 2 (link-local), or 5 (site-local). ...



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