Data exchange between two PCs via MotoTRBO

[Alexitmisty]

Hello, I'm trying to link two PCs to transfer short data by two DP4401e like in this video:

While searching for a solution, I came across this discussion where the same question was raised:

TCP/IP over DMR through MotoTrbo

The nuance is that they stopped only at pinging, but this is not the goal of my task.
I configured the network so that both computers have a DHCP address of 192.168.10.2, the radios receive an address of 192.168.10.1. Radio ID for walkie-talkies are 12.0.19.138 and 12.0.19.139.

As you can see, the ping actually goes through. Walkie-talkies exchange with each other, their diodes blink during transmission. However, as soon as I try to check the availability of the port with the command no port is open:

nc -v <IP_Destination> <port>

I tried to add static routing, but it did not work (the picture shows an attempt to route on a PC to which a radio with RadioID 12.0.19.139 is connected).


I'm also attaching a Wireshark screenshot to show what packets are being transmitted and sent.


I also tried to exchange data through the SmartPTT utility. I set everything up according to the instructions, but at some point the following problem occurred. I register CAI Network 12. When pinging, it is 12.x.x.x, and not 13.x.x.x, that responds.


However, when setting up SmartPTT, the IP is rebuilt to 13.x.x.x.


Please tell me where I'm confused or missing something.

 

[dickie757]

When you pinged with that port number, what was the port pointing to in the socket? Probably nothing, so it failed. Try to ssh into the other machine on port 22

 

[Alexitmisty]

I used command:

netcat -z -v -n 12.0.19.138  8000-8600 2>&1

And I saw:

Connection to 12.0.19.138 8002 port [tcp/*] succeeded!
Connection to 12.0.19.138 8501 port [tcp/*] succeeded!
Connection to 12.0.19.138 8502 port [tcp/*] succeeded!

These ports turned out to be enabled on both radios. I tried to make a connection between them and the terminal even wrote success, but question is still open.


As soon as I tried to transmit messages that were written into the terminal, they were never transmitted.
I also tries SSH but as you can see, connection refused.

 

[Alexitmisty]

As soon as I tried to transmit messages that were written into the terminal, they were never transmitted.

I added screenshot from another PC. First message hello wasn`t delivered. I tried from one PC, there was no delivery. And then I tried from another one and there was no delivery either. As well as the messages sent afterwards.

 

[dickie757]

12.0.19.138 is radio, correct? SSH into other computer, nit radio

 

[Alexitmisty]

Yes, it is radio id, my mistake. I will try again on Monday.

 

[Alexitmisty]

12.0.19.138 is radio, correct? SSH into other computer, nit radio

Okay, I tried my PC IP and this is what happened (with sudo same result).


To previous posts, I would like to add that when communicating via nc, when it wrote a successful connection and I sent chat messages that did not appear on the second computer, both radios blinked as if exchanging data.
I checked the data packets using Wireshark and saw that there were packets on the sending PC, but not on the receiving PC. From this I concluded that there is no data transfer at the stage "Radio receiver -> PC receiver".
Is it possible that I did not register some command for routing traffic from the radio to the PC or is my conclusion fundamentally wrong?

 

[buddrousa]

I thought it was only sending pre caned messages

 

[Alexitmisty]

On YouTube you can find several videos where people exchange short messages through the console on a PC, connecting them through Mototrbo. There is also a SmartPTT program that allows you to send entire files this way. I tried to transfer data as indicated in the SmartPTT instructions, but it was not configured. Maybe in CPS 2.0, when setting up codeplug, there is an option to enable the function of sending data to a PC or something like that?

 

[WRMZ361]

which is the name of the software to run the data package?

 

[Alexitmisty]

I'm trying to set up work through the terminal in Linux using the netcat utility. I haven't seen any other options for setting up short message transmission. If you suggest other options, I will try them too.

 

[WRMZ361]

I'm trying to set up work through the terminal in Linux using the netcat utility. I haven't seen any other options for setting up short message transmission. If you suggest other options, I will try them too.

perfect, thansk for the information