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. I'm sure if you ping the 10.10.167.40, you'll find that it's only a couple hops away. --- On Fri, 4/3/09, Richard Golodner <[email protected]> wrote: > From: Richard Golodner <[email protected]> > Subject: [funsec] Any ideas? > To: [email protected] > 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 > > _______________________________________________ > Fun and Misc security discussion for OT posts. > https://linuxbox.org/cgi-bin/mailman/listinfo/funsec > Note: funsec is a public and open mailing list. _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
