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RE: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard

"Templin, Fred L" <Fred.L.Templin@boeing.com> Wed, 08 February 2017 16:36 UTC

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From: "Templin, Fred L" <Fred.L.Templin@boeing.com>
To: Fernando Gont <fgont@si6networks.com>, "otroan@employees.org" <otroan@employees.org>, Joe Touch <touch@isi.edu>
Subject: RE: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard
Thread-Topic: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard
Thread-Index: AQHSgX24aUQDcUzHwUaWWd7FFympqaFd+j3QgADSTICAAIH0gA==
Date: Wed, 08 Feb 2017 16:35:58 +0000
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Hi Fernando,

> -----Original Message-----
> From: Fernando Gont [mailto:fgont@si6networks.com]
> Sent: Tuesday, February 07, 2017 4:46 PM
> To: Templin, Fred L <Fred.L.Templin@boeing.com>; otroan@employees.org; Joe Touch <touch@isi.edu>
> Cc: 6man WG <ipv6@ietf.org>; ietf@ietf.org; draft-ietf-6man-rfc1981bis@ietf.org; tsv-area@ietf.org; 6man-chairs@ietf.org
> Subject: Re: Last Call: <draft-ietf-6man-rfc1981bis-04.txt> (Path MTU Discovery for IP version 6) to Internet Standard
> 
> On 02/07/2017 05:14 PM, Templin, Fred L wrote:
> > Hi Ole and Joe,
> >
> > Also not to be lost in this discussion is the potential for spoofed ICMP messages
> > that would report a size that is either too large or too small.
> 
> RFC5927 is all about this.

Right. The point is that these data points would seem to indicate that standard
PMTUD per rfc1981bis is not reliable nor secure enough for operation on open
internetworks such as the global public Internet. Maybe the security section
should say that?

Thanks - Fred
fred.l.templin@boeing.com

> Thanks,
> --
> Fernando Gont
> SI6 Networks
> e-mail: fgont@si6networks.com
> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
> 
> 
> 
>

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