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Beginner

How do you send a "Break" on puTTY to a cisco 2600 Terminal server

I have a cisco 2621XM Terminal server connected to A router.  The Terminal server has 32 ports and connected to 32 cisco deviceses. I was trying to login one of my Router which is cisco router 7609 that has a sup-720. The sup-720 failed and I was trying to upgrade the IOS on the sup-720. when I reload it and send a "BREAK" from the puTTY it didn't work.  Is there any way I can send a BREAK from the puTTY or push any key that works.

Thanks.

21 REPLIES 21
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Hall of Fame Community Legend

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Cisco Employee

Hi,

If the standard break sequences do not work, you can try the special commands: right click on the header of putty / Special Commands / Break.

Cheers,

Rose

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In PuTTY, you can use the key combination of CTRL+Break.

Don R. Crawley, Linux+, CCNA Security
Author and speaker for the IT industry
Author of The Accidental Administrator:  Cisco ASA Security Appliance Step-by-Step Configuration Guide
www.soundtraining.net/bookstore

Don R. Crawley, DTM, CSP
Author and speaker for the IT industry
Author of The Compassionate Geek and Accidental Administrator series of books for I.T. professionals.
http://amazon.com/author/doncrawley
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What is the difference between sending a standard break sequence using Control+Break and a special break command using  PuTTY?

The reason for asking is that my colleague could not send a break using the Control+Break keyboard keys but was able to interrupt to booting of an ME3600-X switch using the special break command from the PuTTY menu, which I find rather weird.

Regards

Tom

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YEAH!!!!  you  are the best,   nothing else worked Much Thanks

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Beginner

use "CTRL + SHIFT + 6 + X"

as far as I know..

and also there is command to enable break on boot.

But, I forgot... try to read IOS command guide.

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Not to ressurect a dead thread, but you guys are referencing break sequences for a computer directly connected to a console. All attempts I've tried for these sequences when doing reverse telnet through a terminal server (in my case a 3725) are completely ignored. To my knowledge there's no way to correct this issue.

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Keith Wood wrote:

Not to ressurect a dead thread, but you guys are referencing break sequences for a computer directly connected to a console. All attempts I've tried for these sequences when doing reverse telnet through a terminal server (in my case a 3725) are completely ignored. To my knowledge there's no way to correct this issue.

Yes it's possible. Configure telnet break-on-ip. Then send Interrupt Process signal with Putty Special Command menu.

http://www.cisco.com/en/US/docs/ios/termserv/configuration/guide/tsv_dialin_term_svcs_ps10591_TSD_Products_Configuration_Guide_Chapter.html

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You, sir, are my new best friend. I wish I could mark this question as answered.

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Thank you for the nice rating and good luck!

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Man!! you're the MAN

Also from me Paolo: Thank you!

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worked for me! thanks Paolo!

this is the new link:

http://www.cisco.com/c/en/us/td/docs/ios/termserv/configuration/guide/15-mt/tsv-15-MT-book/tsv_dialin_term_svcs.html

 

don't forget to remove the "telnet break-on-ip" command when you're done.

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that worked thanks

crtl+Shfit+6+x

Enter

 

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Rising star

Standard Break Key Sequence Combinations During Password Recovery

you can use the key combination of CTRL+Break.

or

right click on the header of putty / Special Commands / Break.

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