Dynamic Configuration of IPv4 Link-Local Addresses

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Publisher: IETF
Doc Type: Standard
Pages: 33
Abstract: To participate in wide-area IP networking, a host needs to be configured with IP addresses for its interfaces, either manually by the user or automatically from a source on the network such as a Dynamic Host Configuration Protocol (DHCP) server. Unfortunately, such address configuration information may not always be available. It is therefore beneficial for a host to be able to depend on a useful subset of IP networking functions even when no address configuration is available. This document describes how a host may automatically configure an interface with an IPv4 address within the 169.254/16 prefix that is valid for communication with other devices connected to the same physical (or logical) link. IPv4 Link-Local addresses are not suitable for communication with devices not directly connected to the same physical (or logical) link, and are only used where stable, routable addresses are not available (such as on ad hoc or isolated networks). This document does not recommend that IPv4 Link-Local addresses and routable addresses be configured simultaneously on the same interface. [STANDARDS-TRACK]
Publication Date: 2005-05-01
Status Note: Proposed Standard
DOI: 10.17487/RFC3927
Link: https://doi.org/10.17487/RFC3927
Author(s): Stuart Cheshire
Dr. Bernard D. Aboba
Erik Guttman
Keyword(s): IP Networks, IP Address

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▶ IETF RFC 3927 (2005-05-01)

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Normative Reference(s)

IETF RFC 792 [Active*]
IETF RFC 826 [Active*]
IETF RFC 2119 [Active*]
IETF RFC 2434 [Superseded*]

Bibliographic Reference(s)

IEEE.STD802.3.1996 — IEEE8023 EXTERNAL
IEEE.STD802.5.1998 — 802.5 EXTERNAL
IEEE.STD802.11.1999 — IEEE80211 EXTERNAL
IEEE Std 802:1990 [Superseded]
Esibov, L., Aboba, B. and D. Thaler, "Linklocal Multicast Name Resolution (LLMNR)", Work in Progress, June 2004. EXTERNAL
Aboba, B., "Detection of Network Attachment (DNA) in IPv4" , Work in Progress, July 2004. EXTERNAL
IETF RFC 959 [Active*]
IETF RFC 1918 [Active*]
IETF RFC 2131 [Active*]
IETF RFC 2462 [Superseded*]
IETF RFC 3027 [Active*]

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IETF RFC 3927, Dynamic Configuration of IPv4 Link-Local Addresses
doi: 10.17487/RFC3927
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IETF RFC 6724 [Active*]
IETF RFC 6762 [Active*]
IETF RFC 6763 [Active*]
SMPTE ST 2071-3:2014 [Active, Stabilized]