Out of Date Bogon Prefix

Patrick W. Gilmore patrick at ianai.net
Tue Aug 5 23:18:58 CDT 2008

On Aug 5, 2008, at 3:26 PM, Tim Sanderson wrote:

> Ya sure, like any of us would admit to 50% clue-ness.
> With all the posts here about bogons I would really be surprised  
> that any nanog readers didn't know about keeping bogons updated.

I'd be shocked it there were no people who read NANOG and  
misunderstood or blatantly ignored some of it.

Unfortunately, that means they would ignore / misunderstand the OP's  
request.  But there is probably a small percentage clueless enough to  
have stale bogon filters, but just clueful enough to realize what the  
OP said might apply to them.  A very small percentage....

Switching topics only slightly: Nick, do you have any data on what  
parts of the 'Net you can and cannot reach?  Perhaps take a dump of  
route-views and ping some IPs in each ASN?  Shouldn't be hard to  
script, and might yield useful data - both to you and the rest of us.


> -----Original Message-----
> From: Valdis.Kletnieks at vt.edu [mailto:Valdis.Kletnieks at vt.edu]
> Sent: Tuesday, August 05, 2008 2:15 PM
> To: Nick Downey
> Cc: nanog at nanog.org
> Subject: Re: Out of Date Bogon Prefix
> On Tue, 05 Aug 2008 12:16:53 CDT, Nick Downey said:
>> This is an heads-up from the Mediacom Network Operations Center  
>> about an
>> issue we are seeing. We
>> were recently given an IP scope from ARIN (American Registry for
>> Internet
>> Numbers) that still
>> exists on older Bogon lists many web providers are currently using.
> Out of curiosity - what percentage of connectivity providers are  
> both clued enough to be represented on NANOG and yet unclued enough  
> to not understand the need to keep bogon filters up to date (even if  
> you just get a BGP feed from Team Cymru)?
> (By the way, Nick - if what you sent NANOG was a form letter  
> template, I'd lose a lot of the RFC references and point at Team  
> Cymru's stuff instead)...

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