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Telnet in VB6 code

Posted on 2000-02-15
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581 Views
Last Modified: 2008-03-10
I want to build a application,
and want to telnet to
Cisco Router and Switch by VB6,
and get some message from
Router and Switch.

Can anybody give me some suggestion or
sample code?
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Question by:hxb
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13 Comments
 
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Accepted Solution

by:
kamall earned 150 total points
ID: 2525388
I have a ready sample project for telnet. The project contains many forms, controls, and menus. So, it will be difficult for you to make it to work if I post it here.
Comment me your e-mail address so I can send it to you.
Regards.
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Author Comment

by:hxb
ID: 2525453
huangxb@163.net

Thanks
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Expert Comment

by:kamall
ID: 2525468
In your mailbox!
You are welcome.
Regards.
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Author Comment

by:hxb
ID: 2525853
mail not found yet ,
Please CC to huangxb@usa.net
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Expert Comment

by:kamall
ID: 2529644
Forwarded to the new e-mail.
Regards.
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LVL 7

Expert Comment

by:kamall
ID: 2529646
BTW, just this moment, I found the following reply from mail server:

   ----- The following addresses had transient non-fatal errors -----
<huangxb@163.net>

   ----- Transcript of session follows -----
<huangxb@163.net>... Deferred: Connection timed out with mx4.163.net.
Warning: message still undelivered after 8 hours
Will keep trying until message is 5 days old
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Author Comment

by:hxb
ID: 2530309
Adjusted points to 150
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Author Comment

by:hxb
ID: 2530310
Good code.

Questions
  When I try the sample, and
open to the Router, it will
display:

Username:
Username:^@
Username:VT100^@
Password:
%Access Denied

I think if it is correct,
it will only display
"Username:" and I can input the
username.
I think the VB has send some
Chars or chr(13) to Router.

Please give me some suggestion.
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LVL 7

Expert Comment

by:kamall
ID: 2539118
I really can not figure out what goes wrong. The code works very nice for me!
You can easily step througt the code with F8 to see if it sends something after getting the Username string.
Hope that helps.
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Author Comment

by:hxb
ID: 2540837
Thank
0
 
LVL 7

Expert Comment

by:kamall
ID: 2540933
You are welcome hxb.
Did you figured out the problem?
Regards.
0
 

Author Comment

by:hxb
ID: 2541535

I REM the code
'        Case TERMTYPE
in IAC1() and IAC2()
and the router will display:
Username:      'Line 1
Username:      'Line 2

and then I can login.
I think the VB send some code to
the router after it receive
the "Username:".

How to let it only display one
"Username:"?
If I do not send
the TERMTYPE to the router,
is it OK?



0
 
LVL 7

Expert Comment

by:kamall
ID: 2552951
hxb,
why don't give it a try and see?
I think that (usually), you should send the terminal type to the remote host and get the response, but I'm not really sure.
Regards.
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