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Re: Address privacy (was: Re: RFC4941bis: consequences of many addresses for the network)

Fernando Gont <fgont@si6networks.com> Tue, 28 January 2020 02:52 UTC

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Subject: Re: Address privacy (was: Re: RFC4941bis: consequences of many addresses for the network)
To: Ted Lemon <mellon@fugue.com>, Jared Mauch <jared@puck.nether.net>
Cc: 6man WG <ipv6@ietf.org>, Christian Huitema <huitema@huitema.net>, Michael Richardson <mcr+ietf@sandelman.ca>
References: <6f2a8e5a-a4f6-219b-d7c8-ba79ed257785@huitema.net> <233CE79D-B9BF-4335-8568-D178BD10CEAC@puck.nether.net> <D4C40CE0-B8BE-47AF-9E69-BDE7513E35CB@fugue.com>
From: Fernando Gont <fgont@si6networks.com>
Message-ID: <dcc2d974-ba28-619b-6a9b-79b4b8285c66@si6networks.com>
Date: Mon, 27 Jan 2020 20:27:15 -0300
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On 26/1/20 12:28, Ted Lemon wrote:
> On Jan 26, 2020, at 6:56 AM, Jared Mauch <jared@puck.nether.net 
> <mailto:jared@puck.nether.net>> wrote:
>> It also means things like my ssh sessions can't last long enough to do 
>> large transfers as the address is rotated away.
> 
> If there’s a TCP session holding a reference count on the address, why 
> is it being deleted?  That sounds like a bug, not a problem with privacy 
> addresses.

At least in theory, when an address becomes invalid, you shouldn't be 
using it anymore.

The implementation tweak you note is suggested in the "future work" 
section of rfc4941/rfc4941bis.

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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