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Network Security Security-Basics
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Re: Wardialing - Odd Results

Subject: Re: Wardialing - Odd Results
Date: Tue, 26 Jul 2005 11:57:24 -0500
On Fri, Jul 22, 2005 at 09:43:32AM -0700, Atom Powers wrote:
I've seen this if the data rate for the system you are dialing in to and 
the program you are using are not in synch. For instance, if the system 
you are dialing to is 9600bps and you have your hyperterminal set to 
1500bps you will end up getting many duplicate bits, because you are 
sampling more frequently than you are recieving. The result is garbage 
like you show below even if the system you are dialing to is responding 
with ASCII characters.

        Any mis-configured serial port settings (baud, parity, data
        bits, stop bits) can cause this behaviour.

        In /general/, the hyperterminal default settings of 8/N/1 
        should work in most, but not all cases; some older mainframe
        based equipment, for instance, will use 7 data bits with Even
        parity.  If memory serves, in the past I have also had to
        use even more esoteric settings for parity, such as mark
        or space, but that was 2 decades ago.





                                                        John
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