Hytera Data Transfer

[syngress]

Hello everyone.
I have a few questions about transferring files between two radio devices.

CPS allow to configure Radio To PC Network along with Radio To Radio Network

Now with Hytera Data Transfer I am able to transfer files between two radios.
Do you know how this communication works, if the radio has an IP address, it must, in a sense, also have a network interface ?

If there is a program like Hytera Data Transfer (server - client), it may be possible to write own software to transfer data between radios in other operating systems.

Can I somehow use this interface to send data between radios in Linux?
Do any of you have experience in this topic?

Thank You.

 

[radioopperator]

That radio system like Motorola isn't designed for large files! only small invoice type stuff.

 

[syngress]

And this limitation results from what ?

HyteraDataTransfer Software sends data through UDP packets, but from the network side I see no reason why it should be limited in any way.

Now RINDS which is Remote Network Driver Interface Specification, a Microsoft proprietary protocol used on top of USB, allows us to initiate Network Interface (Linux/Windows). Radios have 2 networks, internal (RadioToRadio) and external (RadioToPCNetwork). I don't know why yet, but RadioControlStationIP is initialized on the Network Interface side as GatewayIP.



On the Wireshark side, you can clearly see UDP communication (different IP address in the photo, preview photo),



So I assume that if you can run software on Windows that works as a Server-Client, you can also write your own software in any language, which will give us countless possibilities.

However, it is not certain whether the IP Radio <-> Radio communication specification limits us in any way, and if so, are the limitations implemented directly in the devices?

From the network point of view, if we have 2 radios and 2 initialized network interfaces, we should be able to send everything via TCP and UDP and the only limit for us should be physics, i.e. the speed of information transfer.

 

[syngress]

I was able to establish communication between two radios.
I am able to transfer small UDP packets without any problems.
The problem begins with large files that need to be fragmented and sent via UDP using the IPv4 protocol.
The first radio (sender) sends data correctly - you can see it in the attached picture (file *.png 1.5MB)



Unfortunately, for some reason, fragmented IPv4 packets do not reach the other radio (receiver), only UDP packets arrived.

I noticed that everything that is sent from the radio (sender) must have the source_port set to 3007, so on the software side you need to bind to this port.
The attached WireShark screen shows IPv4 packets, they do not have information about source_port - perhaps this is some limitation of Hytera to accept only UDP packets with source_port ??

I am including two scripts for those interested, sender and receiver (Python). Maybe you can add something more to this topic

 

[sigonah770]

Question - have you figured out if it's possible to send broadcast messages to all radios in the net?

 

[syngress]

That radio system like Motorola isn't designed for large files! only small invoice type stuff.

Oh ! anything is possible if you face the problem ..
I created software that allows to transfer files between radios, UDP with ACK and retransmission through VHF/UHF.

Communication is slow but everything arrives to other radio as it should.
Plus .. Everything that shows network interface allow to use this software with configurable *.yml

I'm working on threading now so that multiple connections can be run at the same time, this hasn't been tested yet ..

Question - have you figured out if it's possible to send broadcast messages to all radios in the net?

I am convinced that if you put a little work into searching the Internet, you will find what interests you

 

[vk3byr]

Hello everyone.
I have a few questions about transferring files between two radio devices.

CPS allow to configure Radio To PC Network along with Radio To Radio Network

Now with Hytera Data Transfer I am able to transfer files between two radios.
Do you know how this communication works, if the radio has an IP address, it must, in a sense, also have a network interface ?

If there is a program like Hytera Data Transfer (server - client), it may be possible to write own software to transfer data between radios in other operating systems.

Can I somehow use this interface to send data between radios in Linux?
Do any of you have experience in this topic?

Thank You.

Hi,

Did you have to enable IP transit feature with CPS on the radio to achieve data transfer? Could you describe the connectivity path you're using? I assume its PC1 -> radio1-Ethernet -> transmit -> receive -> radio2-ethernet -> PC2. Or are you using USB-to-Radio for each device?

Working on a similar issue at the moment with HM782s to send low-level bit data between two radios. Lots of documentation on IP site connecting, but no guides for simple data transfers via Mobile units.
TIA and appreciate your time.