Revealed: The Internet's well known BGP behavior

Sam Stickland sam_mailinglists at
Fri Aug 29 08:52:27 CDT 2008

Jon Lewis wrote:
> 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.
Level3 pull information from a number of sources, including RIPE where 
we register our routes. One of the nice things about their setup is you 
can query a whois interface to check the filter generation:

e.g. (to pick someone else's AS-MACRO at random)

whois -h RIPE::AS-DEMON


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