[arin-ppml] Draft Policy ARIN-2021-3: Private AS Number and Unique Routing Policy Clarifications

William Herrin bill at herrin.us
Wed Jul 21 23:02:37 EDT 2021


On Wed, Jul 21, 2021 at 7:33 PM Martin Hannigan <hannigan at gmail.com> wrote:
> On Wed, Jul 21, 2021 at 8:39 PM William Herrin <bill at herrin.us> wrote:
>> On Tue, Jul 20, 2021 at 12:52 PM ARIN <info at arin.net> wrote:
>> > “Private ASNs should be used only when there is no plan to use them on the public Internet.”
>>
>> This is factually incorrect. It's uncommon but legitimate practice to
>> employ a private AS number which is dropped from the path by your
>> upstream provider.
>
> Practically, I don’t agree. But I don’t ever recall seeing it. Im my experience, private ASN use is rare.

Hi Martin,

vultr.com uses private AS 64515 to simplify their customer BGP
configuration process.

https://www.vultr.com/docs/using-multiple-autonomous-systems-numbers-asns-with-vultr

Now you've seen it.

Regards,
Bill Herrin


-- 
William Herrin
bill at herrin.us
https://bill.herrin.us/


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