Since it sounds like you'll need to your script to interactively respond to the remote device, I think that you need to use something like Expect.

I personally have never used expect, so I can't offer up more details on how to use expect. Based on my limited knowledge of expect, I believe that it can be used to issue a command, what for a specific response, and then issue another command based on the response received.

In reply to Re^3: Perl Script to enable Cisco by dasgar
in thread Perl Script to enable Cisco by Null_Route0

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