Hi,
i don't know about ILDA via Ethernet. (Afaik ILDA is an analogue signal, while Ethernet cables are made for digital signals of defined network protocols. Ofc you could appropriate an Ethernet cable and "misuse" it for simple analogue signals, but that would not work with your notebooks's port.)
To answer your question, here is a workflow i do use:
* per Ethernet cable my laptop connects to a Shownet network interface
* the Shownet interface generates the analogue ILDA signal as output
* per ILDA cable the Shownet interface is connected to the laser's ILDA input
You can use any laser as long as it has a classic ILDA input.
Laserworlds lasers have the Shownet interface in-built, so your ethernet-cable connects directly to them. No external interface needed.
Similar solutions exists from other manufacturers too, but are more expensive. (Correct me if i'm wrong!)
Edit:
This is the interface
https://www.laserworld.com/de/laser-sof ... editor-set (the softwares you wouldn't need)