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Re: [tram] Publication has been requested for draft-ietf-tram-stun-pmtud-07

Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Fri, 13 July 2018 21:11 UTC

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From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Fri, 13 Jul 2018 16:11:32 -0500
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To: Marc Petit-Huguenin <marc@petit-huguenin.org>
Cc: Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>, draft-ietf-tram-stun-pmtud@ietf.org, tram-chairs@ietf.org, tram@ietf.org, "Asveren, Tolga" <tasveren@rbbn.com>
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Subject: Re: [tram] Publication has been requested for draft-ietf-tram-stun-pmtud-07
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Hi, Marc,

On Tue, Jul 10, 2018 at 11:47 AM Marc Petit-Huguenin <
marc@petit-huguenin.org> wrote:

> On 07/10/2018 09:12 AM, Spencer Dawkins at IETF wrote:
> > Dear TRAMsters,
> >
> > On Mon, Jun 18, 2018 at 5:35 AM Gonzalo Camarillo <
> > Gonzalo.Camarillo@ericsson.com> wrote:
> >
> >> Hi,
> >>
> >> related to the following exchange between Marc and Spencer:
> >>
> >>>     > If using authentication in
> >>>     >
> >>>     >   UDP-based protocols that want to use any of these mechanisms,
> >>>     >    including the PMTUD-SUPPORTED attribute, to signal PMTUD
> >> capabilities
> >>>     >    MUST ensure that it cannot be used to launch an amplification
> >> attack.
> >>>     >    For example, using authentication can ensure this.
> >>>     >
> >>>     > is only one way to ensure prevention of amplification attacks, is
> >> there any
> >>>     > guidance or reference you could point to that would help
> >> implementers
> >>>     > evaluate other approaches?
> >>>
> >>>     It's a good question.  I have to think about that.
> >>>
> >>>
> >>> Thanks for the quick and thorough responses.
> >>>
> >>> I think I'm good on your responses for all my other questions. I'll let
> >>> the working group chew on this one, and let the chairs/shepherd let me
> >>> know when to request Last Call.
> >>
> >> Where are we with this? Do we have a way forward?
> >>
> >
> > I didn't mean to ask a hard question here. Is this going to be difficult
> to
> > figure out?
> >
>
> The short answer is that I could not find a good reference pointing to
> guidance about that,


Good to know. Thank you.


> so I prepared some text that I want to discuss with my co-author next week
> in Montreal.
>

That will be excellent. I'll await the output from that discussion.

Spencer


> --
> Marc Petit-Huguenin
> Email: marc@petit-huguenin.org
> Blog: https://marc.petit-huguenin.org
> Profile: https://www.linkedin.com/in/petithug
>
>

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