Speaking serial out RJ-45 jack

Richard Esplin richard at esplins.org
Fri Mar 27 17:35:47 MDT 2009

I need to talk to a Cisco 2600. It has an RJ-45 jack on it, and it comes with 
an RJ-45 to D9 cable. My laptop does not have a D9 serial port.

I know that I can buy a USB to serial dongle.

However, in theory I can just tell my computer to speak serial out my ethernet 

Is there a driver that does this? I'm running Ubuntu Hardy, but I'm curious if 
it exists anywhere.

I understand that I can get software that lets me transmit serial over 
ethernet to another machine which will then send it out the serial port. That 
isn't exactly what I want.

Any ideas?


Richard Esplin

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