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Re: [v6ops] ULA draft revision #2 Regarding isolated networks

Randy Bush <randy@psg.com> Thu, 29 May 2014 12:24 UTC

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From: Randy Bush <randy@psg.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [v6ops] ULA draft revision #2 Regarding isolated networks
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>>>> red herring.  global prefixes designed to be used in place of ula should
>>>> not be in the global routing table
>>> Indeed they shouldn't, but since everybody should be filtering ULAs
>>> (and most people will do so), ULAs won't propagate but routeable GUAs
>>> might.
>> explain why the two probability distributions will differ
> Because I have considerable confidence that the majority of transit
> operators will know they need to filter fc00::/7, but the same cannot
> be said of arbitrary /48s from RIR space.

i know.  that's why we see no leaks of rfc1918 and ULA today.  oh ...
oops!

the real measurement i would take is to test the hypothesis that utterly
unrealistic fantasies about operations are highest in v6 religious wgs.

randy

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