[Int-area] Re: New Version Notification for draft-ietf-intarea-icmp-exten-hdr-len-05.txt

Ron Bonica <rbonica@juniper.net> Tue, 05 August 2025 17:30 UTC

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From: Ron Bonica <rbonica@juniper.net>
To: Tal Mizrahi <tal.mizrahi.phd@gmail.com>, Xiao Min <xiao.min2@zte.com.cn>, Xiaoming He <hexm4@chinatelecom.cn>, int-area <int-area@ietf.org>, "Eric Vyncke (evyncke)" <evyncke@cisco.com>
Thread-Topic: New Version Notification for draft-ietf-intarea-icmp-exten-hdr-len-05.txt
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Date: Tue, 05 Aug 2025 17:29:45 +0000
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Subject: [Int-area] Re: New Version Notification for draft-ietf-intarea-icmp-exten-hdr-len-05.txt
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Updated to address Joe Touch's IETF Last Call comments




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From: internet-drafts@ietf.org <internet-drafts@ietf.org>
Sent: Tuesday, August 5, 2025 1:12 PM
To: Ron Bonica <rbonica@juniper.net>; Tal Mizrahi <tal.mizrahi.phd@gmail.com>; Xiao Min <xiao.min2@zte.com.cn>; Xiaoming He <hexm4@chinatelecom.cn>
Subject: New Version Notification for draft-ietf-intarea-icmp-exten-hdr-len-05.txt

[External Email. Be cautious of content]


A new version of Internet-Draft draft-ietf-intarea-icmp-exten-hdr-len-05.txt
has been successfully submitted by Ron Bonica and posted to the
IETF repository.

Name:     draft-ietf-intarea-icmp-exten-hdr-len
Revision: 05
Title:    ICMP Extension Structure Length Field
Date:     2025-08-05
Group:    intarea
Pages:    6
URL:     https://www.ietf.org/archive/id/draft-ietf-intarea-icmp-exten-hdr-len-05.txt
Status:   https://datatracker.ietf.org/doc/draft-ietf-intarea-icmp-exten-hdr-len/
HTML:   https://www.ietf.org/archive/id/draft-ietf-intarea-icmp-exten-hdr-len-05.html
HTMLized: https://datatracker.ietf.org/doc/html/draft-ietf-intarea-icmp-exten-hdr-len
Diff:   https://author-tools.ietf.org/iddiff?url2=draft-ietf-intarea-icmp-exten-hdr-len-05

Abstract:

   The ICMP Extension Structure (RFC4884) does not have a length field.
   Therefore, unless the length of the Extension Structure can be
   inferred from other data in the ICMP message, the Extension Structure
   must be the last item in the ICMP message.

   This document updates RFC 4884 to define a length field for the ICMP
   Extension Structure.  When length information is provided, receivers
   can use it to parse ICMP messages.  Specifically, receivers can use
   length information to determine the offset at which the item after
   the ICMP Extension Structure begins.



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