Is it possible to go straight from the Ethernet port of my Ion, to my the Ethernet port of my Mac to send MSC cues from my Mac to my Ion?

Just wondering if this is possible without the addition of more hardware.

I’ve previously set up my system with an external sound card that has 5pin din ports on the back.

That worked a treat for me. But we have recently upgraded to a digital sound console so now the extra sound card is just taking up space so that my Mac can talk to the ION.