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

Victor Kuarsingh <victor@jvknet.com> Thu, 29 May 2014 15:00 UTC

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Date: Thu, 29 May 2014 11:00:37 -0400
From: Victor Kuarsingh <victor@jvknet.com>
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To: Randy Bush <randy@psg.com>, 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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On 2014-05-29, 8:24 AM, Randy Bush wrote:
>>>>> 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!

Leaks are there, however they are identifiable without knowing much about why someone is using them.  So even if
someone leaks it, others can filter.

Victor K