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Sending messages works only in one direction #3

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@muesgit

Hello Mr. Snigirev,

Ive done a simple test to send Information from an Arduino with Ethernet Shield to another Arduino via Serial TX/RX and back.
I was able to use netcat to send messages vie Ethernet to Serial. When i try to send a message back by typing into the Serial monitor of arduino (arduino without ethernet shield), i can only see the configuration in the serial monitors of both arduinos. My input message is not visible.
As i understood, everytime when i type something into the serial and send it to the Arduino with ethernet shield i get the information printed on the usb-channel. I guess i cant see anything because i am sharing the pin 0 and 1.
I wasnt able to see what and if anything is transferred to the ethernet port. I also tried to listen to the port 23 via netcat but it isnt possible.

Do u have any suggestions on how to solve this problem.?

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