Hello, I am new to macOS scripting, so please be gentle.
I am trying to create/delete some VLANs (Virtual Network Interfaces) from a script.
Can anyone point me in the right direction please?
I found some vconfig instructions (networking - How to setup VLAN from Mac OS Mojave using terminal - Super User) and was able to add an interface, but it did not persist a reboot, so looking for something more reliable.
Thanks in advance.
vconfig is the Linux tool for creating VLANs, so isn’t relevant here.
The link you provide points towards using ifconfig to create a VLAN - that’s valid, but ifconfig changes are transient, and therefore lost on reboot (as you’ve noticed).
Instead, MacOS includes the command line networksetup which creates persistent configuration changes that will survive a reboot. Specifically:
networksetup -createVLAN <VLAN name> <parent device name> <tag>
and the corresponding
networksetup -deleteVLAN <VLAN name> <parent device name> <tag>
So as far as your script is concerned, you probably need something like:
do shell script "networksetup -createVLAN myvlan en0 123" with administrator privileges