celichi
Lifetime Supporting Member
TeamViewer can be used across internal IP addresses and....as I hear...without licensing.
Somewhere on the internet I saw how to set it up....
I found some info..
https://community.teamviewer.com/t5/Knowledge-Base/Can-TeamViewer-be-used-within-a-local-network-LAN-only/ta-p/4618
For commercial, you need to purchase a license, or you are in violation of their EULA.