NATting a whole country?

Steven M. Bellovin smb at cs.columbia.edu
Thu Jan 4 00:34:18 UTC 2007


On Thu, 4 Jan 2007 00:53:23 +0100
Iljitsch van Beijnum <iljitsch at muada.com> wrote:

> On 4-jan-2007, at 0:31, Steven M. Bellovin wrote:
> 
> > According to
> > http://www.nytimes.com/aponline/technology/AP-TechBit-Wikipedia->
> > Block.html all of Qatar appears on the net as a single IP address.
> 
> I wonder what they use the other 241663 addresses for.
> 
> +---------+---------+------+--------------+--------+
> | rir     | country | type | descr        | num    |
> +---------+---------+------+--------------+--------+
> | ripencc | QA      | ipv4 | 81.29.160.0  |   4096 |
> | ripencc | QA      | ipv4 | 82.148.96.0  |   8192 |
> | ripencc | QA      | ipv4 | 86.36.0.0    | 131072 |
> | ripencc | QA      | ipv4 | 86.62.192.0  |  16384 |
> | ripencc | QA      | ipv4 | 89.211.0.0   |  65536 |
> | ripencc | QA      | ipv4 | 212.77.192.0 |   8192 |
> | ripencc | QA      | ipv4 | 213.130.96.0 |   8192 |
> | ripencc | QA      | ipv6 | 2001:1a10::  |     32 |
> +---------+---------+------+--------------+--------+
> 
> They have 0.4 addresses per person in Qatar, which isn't all that
> bad: Italy has 0.33. (Caveats about EU labeled address space etc
> apply.)
> 
Honeypots?

(As I noted, there might also be a port 80 packet filter, combined with
an official web proxy that can get out.)


		--Steve Bellovin, http://www.cs.columbia.edu/~smb



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