funsec mailing list archives

Re: Any ideas?


From: Donal <irldexter () gmail com>
Date: Sat, 4 Apr 2009 21:26:05 +1100

Dodgy-ness.... on RCN's behalf! BGP filtering of Bogons and Martians
would prevent this from going outside of most if not all local AS's.

laptop:~ doduibhi$ whois -h whois.cymru.com "207.172.15.67"
AS       | IP               | AS Name
6079    | 207.172.15.67    | RCN-AS - RCN Corporation

RCN doing some monkey magic....

D.


On Sat, Apr 4, 2009 at 6:06 PM, Les Bell <lesbell () lesbell com au> wrote:

"Richard Golodner" <rgolodner () infratection com> wrote:


I am in Chicago now and using Visual Route's trial edition it tells me
10.10.167.40 can be found in Australia.
<<

I am in Australia now, and I can't traceroute to 10.10.167.40. I get a
couple of hops into my ISP's routers, and then - not surprisingly - they
have no route to that destination.

Network 10.0.0.0/8 used to be the old ARPANet, before its address space was
reclaimed for use in RFC 1918 private address space. It's long gone.

It's not unusual for ISP's to RFC 1918 addresses inside their networks; for
example, I notice that my Telstra ADSL connection used to pass through a
few 172.16.0.0/16 type addresses. Of course, those wouldn't be reachable
across the core of the Internet, or anywhere outside Telstra, basically.

Best,

--- Les Bell
[http://www.lesbell.com.au]
Tel: +61 2 9451 1144


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-- 
________________________________________________________________________________
Donal ( http://bsdosx.blogspot.com/ )

"Any intelligent fool can make things bigger, more complex, and more
violent. It takes a touch of genius -- and a lot of courage -- to move
in the opposite direction." Albert Einstein
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