nanog mailing list archives

Re: How polluted is 1/8?


From: "Justin M. Streiner" <streiner () cluebyfour org>
Date: Wed, 3 Feb 2010 15:53:08 -0500 (EST)

On Wed, 3 Feb 2010, Larry Sheldon wrote:

On 2/3/2010 2:19 PM, Justin M. Streiner wrote:

 I could see holding those prefixes aside for research purposes (spam
 traps, honey pots, etc...).

I think it is too bad that we didn't have the forethought to route all of those networks to 100-watt resistors some years ago.

When I last was admin of a small-corner of the world I routed a lot of that kind of traffic (I don't remember it 1/? was part of that or not) to the null interface.

If some unfortunate soul does get 1.1.1.1, 1.2.3.4, 1.3.3.7, etc, they
would also likely experience significant global reachability problems in addition to all of the unintended noise that gets sent their way.

There are many sites that specifically filter those addresses, in addition to those that don't update bogon filters, or assume "no one will _ever_ get 1.2.3.4!" :)

jms


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