109/8 - not a BOGON

Tue Oct 20 14:46:04 UTC 2009

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On 10/20/2009 8:01 AM, Shane Short wrote:
> I've found pinging a polite email to the whois contact on the ASN
> -sometimes- gives useful results, but not always.
> 
> Be aware that you're not only dealing with router black-holes, but
> seemingly some people have applied bogon filtering to their BIND name
> servers also.
> 
> If you can provide a non bogon IP within the same AS, it can be useful
> for the person at the other end-- shows them they have a problem.

References to documents on bogon best practices are a good idea when
trying to contact WHOIS contacts as well - our bogon reference page and
the IANA IPv4 address space assignments page are probably good places to
start on that:

http://www.team-cymru.org/Services/Bogons/
http://www.iana.org/assignments/ipv4-address-space/

Shane makes a good point about BIND and other configs - we actually
stopped including static bogons in our BIND and BGP/JunOS templates
earlier this year because we found they were being used and not updated,
despite our warnings not to do so.

Best regards,
Tim Wilde

- -- 
Tim Wilde, Senior Software Engineer, Team Cymru, Inc.
twilde at cymru.com | +1-630-230-5433 | http://www.team-cymru.org/
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