Home page logo
/

basics logo Security Basics mailing list archives

Re: Wardialing - Odd Results
From: "Champ Clark [Vistech]" <champ () bundy vistech net>
Date: Tue, 26 Jul 2005 15:11:25 -0400

On Tue, Jul 26, 2005 at 11:57:24AM -0500, John R. Dennison wrote:
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 

      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

        Another thing I would say is to start low and work your way up.
That is,  dial in at 300/1200 bps.  Some strange embedded systems use
lower rates.  Also,  play with your parity/stop bit setting.  8N1
is command,  but 7E1 is totally on common.   Another type,  on connecting
you might want to send a couple of characters instead of simply waiting
for the remote system to respond.  As was pointed out,  older mainframes
use such settions and X.25 PAD sometimes do as well.

        
-- 

Champ Clark III    |   Vistech Communications,Inc.   |    850-942-0388 x 101
                         http://www.vistech.net

GPG Key ID: 58A2A58F
Key fingerprint = 7734 2A1C 007D 581E BDF7  6AD5 0F1F 655F 58A2 A58F
If it wasn't for C, we'd be using BASI, PASAL and OBOL. 

Attachment: _bin
Description:


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]