[118813] in North American Network Operators' Group

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Re: dealing with bogon spam ?

daemon@ATHENA.MIT.EDU (George Michaelson)
Thu Oct 29 20:03:38 2009

From: George Michaelson <ggm@apnic.net>
In-Reply-To: <4AE810AE.6030302@spaghetti.zurich.ibm.com>
Date: Fri, 30 Oct 2009 10:02:46 +1000
To: Jeroen Massar <jeroen@unfix.org>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

>
> //// Avoid broken/slow servers:
> ////            "afrinic"       =>
> "ftp://ftp.afrinic.net/pub/stats/afrinic/delegated-afrinic-latest",
> ////            "apnic"         =>
> "ftp://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest",
> ////            "lacnic"        =>
> "ftp://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-latest",
> );
>
>
> Yes, generally the latter three are broken, but as they are mirrored  
> to
> RIPE anyway, you can just pull them off there.
>


Having checked with Jeroen, I would like to observe that in the case  
of APNIC this is almost certainly IPv6 and pMTU problems.

As he observes elsewhere in the email, we all shadow each others data  
in the FTP trees so you can very probably choose one RIR, and use it  
as a fetch-point for all of this data.

BTW The last time this cropped up in any public eye facing NANOG type  
people it was the rfc editor. It can happen to anyone. Geoff wrote it  
up at:

	http://www.potaroo.net/ispcol/2009-01/mtu6.html

So, this is not APNIC having "broken" FTP, its the innate problem of  
IPv6 in the wild.

If you fall back to V4, the fetch works just fine. If tomorrow you  
have problems fetching the stats from ARIN or RIPE, you might want to  
look at your path..

-George


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