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Re: Message CAN be traced! NO MG content!

To: MG Nuts <>
Subject: Re: Message CAN be traced! NO MG content!
From: Skye Poier <>
Date: Wed, 2 Jan 2002 19:34:13 -0800
Sorry, but I just can't stay away from this one, as much as I'd
like to see it die.  I promise I'll be quick...

Word on the street is that Jerry Erbesfield said:
> You are NOT accurate on what you said about DHCP though. The very nature of
> DHCP is the assignment of an IP address, from a pool, each time a new
> connection is made. While, by the luck of the draw, the same IP address
> maybe could come up twice in a row, depending on how large or small the pool
> is and how many users, more often than not a different (random) number will
> be assigned at each connection.

Wrong, I'm afraid.  Almost every DHCP server implementation maintains
a cache that maps ethernet adapter (MAC) addresses to IP addresses.

There are many ISP where a reboot will result in getting the same addr,
it depends on the cache expiry and the churn rate.  This is for
broadband connections only, dialup always gets random assigment because
PPP adapters (virtual) don't have unique MAC addrs.  In actual fact the
modem on the ISP side probably always gets the same IP, if its using
DHCP at all, but when you dial in to a modem pool you can't pick which
modem you're going to connect to.

My old DSL connection would get the same IP after being off for over a
week...  I'll have to stay away from AT&T Broadband then, thanks.

> For a free utility to test/verify what IP address your computer is actually
> using at any point in time, just click on the following link:

Why on earth would you download something for that?

ipconfig /all       or

will tell you everything, and they come with Windows.

> By the way, at the risk of sounding ignorant myself, who/what is Mark or
> Mark's mail list? I am NOT familiar with it and would like to know. owner/admin


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