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Re: L=0 [was draft-pioxfolks-6man-pio-exclusive-bit-02.txt]

Lorenzo Colitti <lorenzo@google.com> Thu, 01 February 2018 10:10 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 01 Feb 2018 19:09:48 +0900
Message-ID: <CAKD1Yr28iU=jCBv7dy4D8gyeL=uB5hFu-YhGOKPiih9sykZ1GQ@mail.gmail.com>
Subject: Re: L=0 [was draft-pioxfolks-6man-pio-exclusive-bit-02.txt]
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: Ole Troan <otroan@employees.org>, 6man WG <ipv6@ietf.org>
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On Thu, Feb 1, 2018 at 5:56 PM, Mikael Abrahamsson <swmike@swm.pp.se> wrote:

>
> Not if the network implements SAVI.
>>>
>>
>> But if it does, that allows the hosts to mount a state exhaustion attack
>> on
>> the network by creating new IP addresses. Remember, one of the biggest
>> advantages of the prefix-per-host model is that it has none of the
>> scalability issues inherent in individually tracking IP addresses.
>>
>
> SAVI-style functionality can enforce prefix-per-host in a (semi) shared
> L2. That's what it does.
>

Are you talking about something that's not standardized? All the SAVI RFCs
that I have seen track individual addresses.

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