Actually, I would expect that the two OSes can't ping each other after all, they're sharing an ethernet card (and thus a MAC address). Or does tap do something odd? maybe...
I have it working quite nicely - but I'm not using tap at all. What I have is #################################### # Ethernet #################################### disable_osi_enet: no enet_interface: eth0 and all I had to do was startmol (and then setup MacOS). Of course, I have the luxury of being able to use dhcp in addition to my 1 static IP, such that Linux and MacOS end up as peers and I don't need a masquerade. But it *can* work in debian, at least.
