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Re: [v6ops] Interesting problems with using IPv6

Sander Steffann <sander@steffann.nl> Sat, 13 September 2014 12:14 UTC

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From: Sander Steffann <sander@steffann.nl>
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Date: Sat, 13 Sep 2014 14:14:51 +0200
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References: <1410082125488.85722@surrey.ac.uk> <540CB702.3000605@gmail.com> <20140908183339.GB98785@ricotta.doit.wisc.edu> <540E26D9.3070907@gmail.com> <1410227735.13436.YahooMailNeo@web162204.mail.bf1.yahoo.com> <540ECB9E.9000102@foobar.org> <CAKD1Yr1_sCLHv=D3MeCe47Fa0dxXTXH5B+=wOKpvmEDFkJFiZw@mail.gmail.com> <75B6FA9F576969419E42BECB86CB1B89155AF364@xmb-rcd-x06.cisco.com> <20140909142226.GP15839@angus.ind.WPI.EDU> <101C89B1-019B-4E51-B869-FABC534E6D3D@delong.com> <5413A448.2030104@gont.com.ar> <0E61F8D0-22C6-4E37-93E2-9D9B13254055@delong.com>, <876198F8-4283-428E-8D20-B4EC6AAE440E@steffann.nl> <CB71500C-DE25-47D3-BA43-90636BFD5522@cisco.com>
To: "Bernie Volz (volz)" <volz@cisco.com>
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Archived-At: http://mailarchive.ietf.org/arch/msg/v6ops/KoY3iypGz2rcCzGtu84Qq490Qv8
Cc: "v6ops@ietf.org" <v6ops@ietf.org>, Fernando Gont <fernando@gont.com.ar>
Subject: Re: [v6ops] Interesting problems with using IPv6
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Hi Bernie,

>>> I suppose another viable solution would be to require all privacy addresses to use a common lower 24 bit string.
>> 
>> That would defeat the purpose of the solicited node multicast address. All of them would use the same one, so all hosts have to listen to the same one, and we're back to ARP-like efficiency again...
> 
> I would think he meant for a single node, not across all nodes. Thus each node only has one multicast group (for privacy addresses).

I would hope so as well but I got the impression he didn't...

Cheers :)
Sander

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