how to connect to a switch using RJ-45 to serial adapter?

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how to connect to a switch using RJ-45 to serial adapter?

Post by ghostheadx2 on Wed Aug 02, 2017 2:32 pm
([msg=94032]see how to connect to a switch using RJ-45 to serial adapter?[/msg])

Hi, I just recently set up my CISCO switch. I'm trying to connect with minicom. I looked at several tutorials online of how to do this. I tried the tutorials on YouTube but the problem is they assume I have a serial port in my computer. I don't. I had to get a serial to RJ-45 adapter to connect my switch to my computer.

So when I tried the instructions the tutorial said like so:

Image
See, here is what the tutorial told me to do in minicom

I also tried it with the USB port like so:

Image
doesn't work like this either

Again, doesn't work with my RJ-45 connector. As proof that it doesn't work, here is what happens when I run:

Code: Select all
sudo minicom


I get this either way after saving either setting as the default for minicom:

Image
This is what I get both times

I need to connect to my switch in order to practice my CISCO training. Could someone help me with this? I looked in the /dev/ folder of Ubuntu and didn't know which file is for the Ethernet port.

Could someone help me with this? Thanks.

Sincerely, yours truly, the world's ultimate n00b, fogstone
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Re: how to connect to a switch using RJ-45 to serial adapter?

Post by boriz666 on Thu Aug 03, 2017 3:34 am
([msg=94034]see Re: how to connect to a switch using RJ-45 to serial adapter?[/msg])

Try looking at the output of dmesg after you plugin the adapter and you will most
likely see what has been plugged in, eg. what its called in /dev
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Re: how to connect to a switch using RJ-45 to serial adapter?

Post by Tweakz20 on Mon Sep 25, 2017 12:05 pm
([msg=94687]see Re: how to connect to a switch using RJ-45 to serial adapter?[/msg])

Although Cisco console cables plug into RJ-45 on the device, it will absolutely not work if you try to use a cable into your computer's RJ-45 port. You need to use the serial rollover cable (the powder blue one) and purchase a serial->usb converting device.
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