Revealed: The Internet's well known BGP behavior

Jon Lewis jlewis at
Thu Aug 28 12:35:41 CDT 2008

Do you utilize the IRR, have an as-set, and put all customer AS/CIDR's 
into the IRR?  I've honestly never heard from LVL3 about our 
advertisements.  Other providers have varied from just needing a web form, 
email, phone call, or those combined with faxed LOAs.  The latter gets 
very annoying...but maybe it is the way it should be.

On Thu, 28 Aug 2008, Boyd, Benjamin R wrote:

> We've encountered the same diligence with LVL3, especially after
> acquisitions where records haven't been updated yet.  Although a little
> annoying it's quite refreshing.
>> -----Original Message-----
>> From: Eric Spaeth [mailto:eric at]
>> Sent: Thursday, August 28, 2008 1:41 AM
>> To: Jon Lewis; nanog at
>> Subject: Re: Revealed: The Internet's well known BGP behavior
>> Jon Lewis wrote:
>>>> At 11:32 PM 27-08-08 -0500, John Lee wrote:
>>>> They didn't have control of any routers other than their own.  What
>>>> they had to find is a single clueless upstream ISP that would allow
>>>> them to announce prefixes that didn't belong to them.
>>> Clueless or big and inattentive?  AFAIK, Level3 will accept anything
>>> from long as I put it in one of the IRRs the day
>> before I plan
>>> to announce it.
>> Working for a company that has been steadily growing through
>> acquisition, we have actually run into this problem a couple times
>> before.   I'm not sure if we hit the lottery, but our upstream
>> providers
>> (including LVL3) have definitely intervened when we've moved
>> netblocks from a company that doesn't match our name into our
>> facilities to be advertised under our ASNs.  I'm not sure how
>> diligent or widespread the validation checks are, but at least
>> on occasion they do occur.
>> -Eric
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  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
_________ for PGP public key_________

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