Try as I might, I cannot get the virtual network to show up in System Preferences (MacOS). This used to work just fine in Yosemite (and probably some more recent versions but I don't recall at the moment). Does anyone have any suggestions? The "Connect Mac to this network" check box doesn't appear to do anything.
Update: I managed to create a NetworkService for bridge101 (the host-only bridge). I seem to remember this is as far as I could get last time I tried to get this to work. The issue is while I can ping the VM and in the UI set the VM as the router, for whatever reason MacOS can't access the VM's internet. netstat -nr shows the proper gateway. If I run windows in another VM I can use the prior VM's internet no problem via host-only networking. Seems like a Mac-side issue. I don't know what else to try.
This is my forum post on Apple with screen shots showing what's working and what isn't: https://discussions.apple.com/thread/255149391?page=1
Hello, Unfortunately, this option won't work on Mac computers with Apple silicon or on Mac computers with Intel processors having macOS Ventura or newer running as a host operating system due to the peculiarities of the kextless network.
What peculiarities? You're not really explaining anything, nor referring/linking to anything I can look up. What is preventing MacOS from using a VM as a gateway? It has no difficulty pinging the machine. Also, despite the fact I have authored a KEXT back in the day, I don't know what you mean by "kextless network".