North American Network Operators Group

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Re: [Fwd: Kremen VS Arin Antitrust Lawsuit - Anyone have feedback?]

  • From: Stephane Bortzmeyer
  • Date: Wed Sep 13 11:55:31 2006

On Wed, Sep 13, 2006 at 11:43:36AM -0400,
 D'Arcy J.M. Cain <[email protected]> wrote 
 a message of 20 lines which said:

> No one knows me by my IP address.  They know me by my email
> address(es).

It does not seem true. IP addresses are visible outside in:

* DNS servers when you get a zone delegation (the most important
  reason why changing IP addresses is a pain),
* some peer-to-peer networks like Freenet, which do not use the DNS.

(There are also a lof of internal uses of IP addresses for instance in
firewalls and SSH caches.)

So, you actually have:

1) Phone numbers (very visible outside)
2) IP addresses (visible outside)
3) MAC addresses (completely invisible outside except for a few
   minutes in the ARP caches)