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Re: [v6ops] Apple and IPv6, a few clarifications - 64share

"Hemant Singh (shemant)" <shemant@cisco.com> Mon, 22 June 2015 12:13 UTC

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From: "Hemant Singh (shemant)" <shemant@cisco.com>
To: Jeremy Visser <jeremy@sunriseroad.net>, "v6ops@ietf.org" <v6ops@ietf.org>
Thread-Topic: [v6ops] Apple and IPv6, a few clarifications - 64share
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Date: Mon, 22 Jun 2015 12:13:35 +0000
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Subject: Re: [v6ops] Apple and IPv6, a few clarifications - 64share
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-----Original Message-----
From: v6ops [mailto:v6ops-bounces@ietf.org] On Behalf Of Jeremy Visser
Sent: Monday, June 22, 2015 7:45 AM
To: v6ops@ietf.org
Subject: Re: [v6ops] Apple and IPv6, a few clarifications - 64share

>Why stop at /63?

>If you can think of a use for two subnets, I can think of a use for three.  Or four.  Or sixteen.  Or two hundred and fifty-six...

Also, if the phone uses DHCPv6 PD, then the phone's interface is a requesting router as per RFC3633.  Note, the IPv6 CE Router document in RFC7084 and its WPD-2 bullet.  One should round off prefix length to the nearest nibble.  Thus use a /60.    Additionally, since the phone has disparate transport interfaces in cellular and wifi to forward traffic between, it is best to use routing between the two interfaces.  See what subset of rfc7084 can be used in the phone.  Additionally, an IPv6 CE router implementation is available on Linux in OpenWRT for Linksys routers. 

Thanks,

Hemant

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