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Re: [Roll] suggested addition to draft-ietf-roll-efficient-npdao

Peter van der Stok <stokcons@bbhmail.nl> Mon, 02 September 2019 16:08 UTC

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Date: Mon, 02 Sep 2019 18:08:29 +0200
From: Peter van der Stok <stokcons@bbhmail.nl>
To: Alvaro Retana <aretana.ietf@gmail.com>
Cc: "Pascal Thubert (pthubert)" <pthubert@cisco.com>, Routing Over Low power and Lossy networks <roll@ietf.org>, consultancy@vanderstok.org
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Subject: Re: [Roll] suggested addition to draft-ietf-roll-efficient-npdao
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Pausing useofrplinfo also seems necessary.

Peter
Alvaro Retana schreef op 2019-08-30 20:13:

> On August 30, 2019 at 10:20:05 AM, Pascal Thubert (pthubert) (pthubert@cisco.com) wrote: 
> 
> Pascal: 
> 
>> The proposal does not change the behavior of the NPDAO but adds information about why the NPDAO is sent. Are you concerned by attacks like a cover channel? We could have one sentence on that but I'm unclear how to protect against it.
> 
> I haven't thought about it too long...but, yes, that could be one thing.  Not having a mitigation is ok, as  long as a potential vulnerability is explained.
> 
>> In the future status values that modify the behavior of NPDAO may be introduced. But for now we'd be looking at a very minimalistic change where the reserved field carries a RPL status that does not affect the behavior of the nodes. 
>> The hope would be that it does not affect the reviews that were already done.
> 
> I hope so too...but would have to see the scope of any change first. 
> 
> For now, I will ask the RFC Editor to pause processing. 
> 
> Thanks! 
> 
> Alvaro.

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