funsec mailing list archives

Re: Any ideas?


From: "Les Bell" <lesbell () lesbell com au>
Date: Sat, 4 Apr 2009 17:06:23 +1000


"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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