nanog mailing list archives

Re: NATting a whole country?


From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Wed, 3 Jan 2007 19:34:18 -0500


On Thu, 4 Jan 2007 00:53:23 +0100
Iljitsch van Beijnum <iljitsch () 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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