Firewalls: Re: modems and accessing the internal network

Firewalls
(December 1995)

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Subject:	Re: modems and accessing the internal network
From:	jon @ ctasim . com (Jon Doran)
Date:	Tue, 12 Dec 95 11:49:50 -0700
To:	"Kevin J. McMahon" <0003557428 @ mcimail . com>
Cc:	firewalls @ greatcircle . com

Another way of defeating dialback is to play dialtone into the line to
make it look like you hung up.  The remote machine dials, you ignore the
tones and after a couple of seconds turn your modem loose on it.  I
haven't tried this, but heard that it works for bbs dial back.

Jon
-----------------------------------------------------------------

Jon Doran
CTA Simulation Systems, LLC
7315 E. Orchard Rd, Suite 100
Greenwood Village, CO 80111

(303) 889-1270
jon @
 ctasim .
 com

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