RFC 4291:IP Version 6 Addressing Architecture
RFC-Ref

link-local address


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... created with a local scope interface identifier and a Link-Local address may be created with a universal scope interface identifier. ...
... Link-Local addresses are for use on a single link. Link-Local addresses have the following format: ...
... Link-Local addresses are for use on a single link. Link-Local addresses have the following format: | 10 | ...
... +----------+-------------------------+----------------------------+ Link-Local addresses are designed to be used for addressing on a single link ...
... identifying itself: o Its required Link-Local address for each interface. ...



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