So I want to software-spoof my airport MAC address on my iBook G4, for a variety of (non illegal) reasons. A lot of it is for internal testing on my home LAN and majorly at the office. Now, I can compile mach_kernal fine, and it boots. I used Jeff Nathan's BIOCSHDRCMPLT-10.3.3 patch and a RAW4ALL patch so non-root users can create raw sockets. So, I figured I'd be able to ifconfig en1 ether 00:11:22:33:44:ff and that'd be that. It tells me, however, "ifconfig: ioctl (SIOCAIFADDR): Operation not supported" when I try to do this. To be honest, I'm not totally sure what BIOCSHDRCMPLT and SIOCAIFADDR mean. Am I entering the wrong commands? What should I be doing now to spoof my MAC? Is there any relation to libnet or nemesis? Thanks.