Cisco Break Sequence
In a previous post Serial Console on OS X I wrote about how to connect a USB-Serial converter to console into Cisco router and use the ‘screen’ command.
To perform a password recovery on a Cisco router you need to issue a “terminal break” character to interrupt the boot process. The Cisco page on terminal break shows a lot of break sequences.
Cisco Break Sequence Putty
The standard procedure is to do a BREAK command during boot up and type command eee in order to flash the memory. Unfortunatly, all these new keyboards don't have the BREAK function key available. Any ideas on how I can get my issue resolved? The Cisco page on terminal break shows a lot of break sequences. The break sequence for “screen” is to use Ctrl-A and then Ctrl-B. The Ctrl-A shifts the focus back to the screen process (away from the serial console) and the Ctrl-B issues the break sequence. You may need to break more than once. This is done by Ctrl-A, Ctrl-B, Ctrl-B, Ctrl-B.
Cisco Break Sequence Putty
The break sequence for “screen” is to use Ctrl-A and then Ctrl-B. The Ctrl-A shifts the focus back to the screen process (away from the serial console) and the Ctrl-B issues the break sequence.
Cisco Break Sequence Ssh
You may need to break more than once. This is done by Ctrl-A, Ctrl-B, Ctrl-B, Ctrl-B.