search for: macethernettapag

...kernel extensions were deprecated recently and will likely be removed in a future macOS release this fall. An alternative to tap devices on macOS is something called a feth interface. Luckily, the ZeroTierOne project released a program <https://github.com/zerotier/ZeroTierOne/blob/master/osdep/MacEthernetTapAgent.c> which can interact with a feth interface through stdin and stdout. Since ssh uses file descriptors for all of its tunnels, I think a similar program could be used in the ssh sys_tun_open logic to interact with a feth interface on macOS. I have not yet gone far enough to try and integrate...