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Date:      	Fri, 5 May 1995 13:48:33 -0700
From:      "Mike O'Brien" <obrien@antares.aero.org>
To:        questions@FreeBSD.org
Subject:   So your site reconnects to the net automatically.  Then what?
Message-ID:  <95May5.134854pdt.111114-2@aero.org>

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	I've posted this question to -hackers, which was probably the
wrong place.  I'll post it here where it belongs.

	Many people seem to be using 'expect' or something similar to cause
their systems to reconnect to the net upon abnormal termination of their
dialup PPP (or maybe SLIP) connection.

	However, most Internet providers do dynamic address assignment of
PPP connections, so when you reconnect, you never have any idea what IP
address you're going to get.  Now, I'm sure most of you have had the
experience of having the call drop right in the middle of a hot'n'heavy
FTP session, or MUD or IRC conversation, or whatever, and frantically
reconnected immediately, and gotten the same IP address, and saved the
TCP session(s) in progress.  I know I have.  That's not my question.

	I'm talking about when you're at work, or offsite, or away, or
just plain gone, and your computer redials automatically.  Once it's
reconnected, how in the world do you figure out what it's new IP address
(or even name) is, so you can talk to it again from wherever you are?

Mike O'Brien



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