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Status:

PROPOSED STANDARD

Authors:

A. Atlas, Ed.
R. Bonica, Ed.
C. Pignataro, Ed.
N. Shen
JR. Rivers

Stream:

IETF

Source:

NON WORKING GROUP

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DOI:  https://doi.org/10.17487/RFC5837

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Abstract

This memo defines a data structure that can be appended to selectedICMP messages. The ICMP extension defined herein can be used toidentify any combination of the following: the IP interface uponwhich a datagram arrived, the sub-IP component of an IP interfaceupon which a datagram arrived, the IP interface through which thedatagram would have been forwarded had it been forwardable, and theIP next hop to which the datagram would have been forwarded.

Devices can use this ICMP extension to identify interfaces and theircomponents by any combination of the following: ifIndex, IPv4address, IPv6 address, name, and MTU. ICMP-aware devices can usethese extensions to identify both numbered and unnumbered interfaces. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.