I have figured that part OK and now it connected and running kind of OK on my Linux box with USB-TCP/IP fw.
The new problem I have is with tobii-analytics-sdk-3.0.83-ubuntu-amd64
I have compiled the samples fine.
I can connect to device fine with tobiictl.
[tobiictl]$ ./tobiictl -i REXDL-010104612413
Printing info about Eye Tracker: REXDL-010104612413
Product ID: REXDL-010104612413
Given name: REX_Dev_Laptop
The problem is that when I enable the tracking I get this error:
[tobiictl]$ ./tobiictl -t REXDL-010104612413
Tracking with Eye Tracker: REXDL-010104612413
Operation failed. 536872197
Looking into documentation, I can see that means: