The IPv6 Link-Local Address Type Field

Document Type Expired Internet-Draft (individual)
Author Fred Templin 
Last updated 2021-05-27 (latest revision 2020-11-23)
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IPv6 link-local addresses are formed from the prefix fe80::/10 which is followed by 54 "zero" bits, then followed by a 64-bit Interface Identifier. There are multiple methods for generating link-local addresses, and multiple may be in use by nodes on the same link (and sometimes even the same interface) at the same time. This document defines an IPv6 link-local address "Type" field that identifies the type of link-local address being used.


Fred Templin (

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