funsec mailing list archives

Re: Any ideas?


From: "Richard Golodner" <rgolodner () infratection com>
Date: Sat, 4 Apr 2009 01:37:27 -0500

        Robert said to me:

" I'm sure if you ping the 10.10.167.40, you'll find that it's only a
couple hops away.

I am in Chicago now and using Visual Route's trial edition it tells me
10.10.167.40 can be found in Australia. Here is the trace:

Address of Hop  Name of Hop  Location 
 10.10.10.1  (unnamed)  (Private) (My inside interface) my comment
 10.20.0.1  (unnamed)  (Private)   (RCN DHCP server)    my comment
 207.229.191.130  mart-h1.chi-mart.il.cable.rcn.net  Herndon, VA, USA 
 207.172.19.41  ge0-0-2.core1.chsl.il.rcn.net  Herndon, VA, USA 
 207.172.19.151  ge3-2.core1.sbo.ma.rcn.net  Worcester, MA, USA 
 207.172.15.114  ge4-1.core2.sbo.ma.rcn.net  Worcester, MA, USA 
 207.172.19.37  pos5-0.core2.nyw.ny.rcn.net  New York, NY, USA 
 207.172.15.67  tge1-2.core4.nyw.ny.rcn.net  New York, NY, USA 
 207.172.19.107  tge2-1.aggr1.nyw.ny.rcn.net  New York, NY, USA 
 -  (unnamed)   (An unnnamed hop) my comment
 10.10.167.40  (unnamed)  (Private) Australia according to Visual Route's
location service
        I have not been able to confirm this. I do appreciate your help and
hope that this stimulates some more ideas as I am perplexed.
Richard




-----Original Message-----
From: Robert Graham [mailto:robert_david_graham () yahoo com] 
Sent: Saturday, April 04, 2009 1:15 AM
To: funsec () linuxbox org; Richard Golodner
Subject: Re: [funsec] Any ideas?


RFCs are not the law. You can break them. I use so-called
routable/non-private (although not allocated) addresses for my internal
network. ISPs route non-routable/private addresses. Specifically, they use
such addresses as part of their management network: they assign private
addresses in the 10.x.x.x space to routers, modems, etc. 

From what I understand, cable-modem providers give a 10.x.x.x address to
their cable-modems for management purposes. I believe the last time I had a
cable modem, I saw these 10.x.x.x addresses exposed on my Ethernet.

I run traceroute through my tethered cellphone, and find that the phone
company assigns 192.168.x.x addresses to routers. nmap scans confirm other
machines in that so-called "private" "non-routable" range.


--- On Fri, 4/3/09, Richard Golodner <rgolodner () infratection com> wrote:

From: Richard Golodner <rgolodner () infratection com>
Subject: [funsec] Any ideas?
To: funsec () linuxbox org
Date: Friday, April 3, 2009, 2:44 PM
When I do:

Show IP Nat Translations, I see this coming from my
wife's laptop.

 

Pro Inside global                      Inside local        
 Outside local
Outside global

tcp 24.148.6x.xxx:2022    10.10.10.98:2022     
10.10.167.40:2967
10.10.167.40:2967

 

                How does this 1918 address space route
across the internet?
10.10.10.98 is her machine. Any ideas are welcome and there
are no chat
programs allowed on our (MY) LAN, so I have ruled that out.

                Thank you and have a great weekend, Richard

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