[BBLISA] address hijacking

Daniel Feenberg feenberg at nber.org
Fri Aug 23 15:12:34 EDT 2013



On Fri, 23 Aug 2013, Steve Meuse wrote:

> 
> As a quick fix, you could announce more specific prefixes, it looks like
> they are announcing a matching /23. 

That is a great suggestion. While we were working on that the problem was 
fixed, presumably due to your intervention with Earthlink. I thank you 
very much.  The problem was corrected before we could annouce the /24s but 
we left the commented out code in our router config to do so in the future 
if necessary.

Thanks for all the comments - they were all more helpful than our ISP 
nocs. I am especially annoyed with Windstream (owner of Paetec), who 
refused to open a ticket with their own upstream transit provider (Level3) 
that was accepting the false announcement over a peering link.

Daniel Feenberg
NBER

> 
> -Steve
> 
> 
> 
> 
> On Fri, Aug 23, 2013 at 10:28 AM, Daniel Feenberg <feenberg at nber.org> wrote:
>
>       I am beginning to believe that One Communications has hijacked
>       our address
>       space. At the moment any traceroute from a Comcast cable modem
>       in the
>       Boston area to us dies somewhere in New York on a One
>       Communications
>       router. How do I approach them when I am not a customer? I took
>       this up
>       with our ISP (Windstream) and they declined to assist, as did
>       Comcast. In
>       niether case could I speak with a person who understood what was
>       going on.
>
>       Our IPs are in the range 66.251.72.0/23. The Windstream side of
>       our router
>       is 63.139.191.117. Traceroutes from Comcast to the latter do
>       succeed, to
>       the former fail. They take completely different paths.
>       Traceroutes from
>       inside our LAN to Comcast also fail, usually ending at a Level3
>       router in
>       NY. None of the ISP mentioned here have a working looking glass.
>
>       Thanks for any advice, suggestions.
>
>       Daniel Feenberg
>       617-863-0343
>
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>       bblisa at bblisa.org
>       http://www.bblisa.org/mailman/listinfo/bblisa
> 
> 
> 
>


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