Is it possible to detach an ethernet interface in 10.1 / Darwin 1.4 after it has been ifconfig'ed up? (and down again) Eg, looking at the source code for ether_attach_inet, I see: /* XXX avoid free'ing the interface */ ifp->if_eflags |= IFEF_DETACH_DISABLED; I don't see IFEF_DETACH_DISABLED being cleared anywhere. So it looks as though an interface becomes unloadable once its been configured. Is this true? Why?? Thanks, Drew