198.32.64.12 -- Harmless mis-route or potential exploit?
bmanning at vacation.karoshi.com
bmanning at vacation.karoshi.com
Wed Sep 3 12:42:48 UTC 2008
well, actually.... this was the IP address used for l.root-servers.net
from 1998-2008. so i guess you could say its never been used for anything.
we are not currently routing that prefix and there should currently be nothing
at that IP address.
--bill
On Tue, Sep 02, 2008 at 06:24:21PM -0400, Dan Mahoney, System Admin wrote:
> Hello all,
>
> While recently trying to debug a CEF issue, I found a good number of
> packets in my "debug cef drops" output that were all directed at
> 198.32.64.12 (which I see as being allocated to ep.net but completely
> unused).
>
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
> Sep 2 22:03:25: CEF-Drop: Packet for 198.32.64.12 -- no route
>
> Now, as nearly as I can tell, this IP address has never been used for
> anything, but I see occasional references to it, such as here:
>
> http://www.honeynet.org/papers/forensics/exploit.html
>
> So the question is, should I just ignore this as a properly dropped packet
> due to "no route" (this provider is running defaultless, so unless such a
> route exists, it should be okay).
>
> On the other hand, one of the other packets I'm seeing specifically refers
> to a DNS exploit, so should I then dispatch to people to trace down the
> source origin ? (Suffice it to say the resources are there to find it
> fairly easily, even if the source address is forged).
>
> -Dan
>
> --
>
> --------Dan Mahoney--------
> Techie, Sysadmin, WebGeek
> Gushi on efnet/undernet IRC
> ICQ: 13735144 AIM: LarpGM
> Site: http://www.gushi.org
> ---------------------------
>
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