even after upgrading to Fusion 12.1 today (running on macOS Big Sur 11.0.1), I still can't see the vmnet8 entry when I run ifconfig. This used to be the case in Catalina with Fusion 11.x.
I tried running
sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist && sudo killall -9 configd
then restarting Fusion and restarting the mac, bot nothing changed. I also tried this:
sudo pfctl -a com.apple.internet-sharing/shared_v4 -s nat 2>/dev/null Password: nat on en7 inet from 192.168.139.0/24 to any -> (en7:0) extfilter ei nat on en0 inet from 192.168.139.0/24 to any -> (en0:0) extfilter ei no nat on bridge100 inet from 192.168.139.1 to 192.168.139.0/24
which seems to indicate that something's indeed not right.
note: I'm usually connected to a VPN on the mac host, but I don't think that this is the issue, as I also tried this without being on the VPN.
Thanks for your input 🙂