Re: [v6ops] IANA assigned prefix for IPv6 benchmarking

james woodyatt <jhw@nestlabs.com> Mon, 27 July 2015 18:20 UTC

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From: james woodyatt <jhw@nestlabs.com>
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Date: Mon, 27 Jul 2015 20:20:33 +0200
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Subject: Re: [v6ops] IANA assigned prefix for IPv6 benchmarking
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On Jul 26, 2015, at 18:22, Erik Kline <ek@google.com> wrote:
> 
> […]
> If, for instance, *every time a NAT64 test network was started* a new
> random ULA was generated or, say, 2001:2:0:$RAND16::/64 were used,
> then developers would be less likely to accidentally make assumptions
> about the consistency of addresses.

I think it would be better not to use a single constant network prefix for the purpose Stuart described. The reason is that Stable and Opaque IIDs with SLAAC [RFC 7217] will never change on such networks. For the testing purpose Apple has in mind, I think it would be better to use a /48 prefix with a subnet that can be chosen as a configuration option in the Sharing preferences.

—james