VMware Fusion exposes command line options that make it easy to add or remove virtual adapters manually.
In this post, I will be adding and removing virtual adapter vmnet7. A fresh install of VMware Fusion does not include this virtual adapter.
Manually Add VMware Fusion Virtual Adapter
The following commands will create vmnet7, a VMware Fusion host only virtual adapter assigned to network 192.168.240.0/24:
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgadd VNET_7_DHCP no
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgadd VNET_7_HOSTONLY_SUBNET 192.168.240.0
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgadd VNET_7_HOSTONLY_NETMASK 255.255.255.0
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgadd VNET_7_VIRTUAL_ADAPTER yes
Restart VMware Fusion networking to apply the changes:
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cli --configure
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cli --stop
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cli --start
Perhaps you also want that network to route out to the internet via NAT. No problem, simply run the following command or include it with the other commands above:
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgadd VNET_7_NAT yes
Once again, to apply the change, restart VMware Fusion networking with the three vmnet-cli commands above.
The vmnet-cfgcli command will modify entries in /Library/Preferences/VMware\ Fusion/networking. This file can also be edited by hand and any changes can be applied by restarting VMware Fusion networking with the three vmnet-cli commands above.
Manually Remove VMware Fusion Virtual Adapter
To remove the vmnet7 VMware Fusion virtual adapter, you can edit /Library/Preferences/VMware\ Fusion/networking, remove all lines containing VNET_7, and restart VMware Fusion networking, or you can use the following commands and then restart VMware Fusion networking:
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgremove VNET_7_DHCP
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgremove VNET_7_HOSTONLY_SUBNET
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgremove VNET_7_HOSTONLY_NETMASK
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgremove VNET_7_VIRTUAL_ADAPTER
If you configured vmnet7 to use NAT, also run the following command and then restart VMware Fusion networking:
sudo /Applications/VMware\ Fusion.app/Contents/Library/vmnet-cfgcli vnetcfgremove VNET_7_NAT
