On Apr 6, 2004, at 2:52 AM, manju dogra wrote: I am a total newbie to Mac kernel and drivers. i want to develop a module which can intercept TCP packets before they reach the TCP stack and send its own modified packets to the stack. Similarly, for packets going towards the network, the packets need to be intercepted and replaced by modified packets. Could anyone help me on how to get started on this ?? Thanks Ashish A good description of the different kinds of filter NKEs can be found here: http://developer.apple.com/documentation/Darwin/Conceptual/ KernelProgramming/Networking/chapter_13_section_3.html#//apple_ref/doc/ uid/TP30000905-CH216-TPXREF102 Which I found via a search for "NKE" at Apple's Developer site (http://developer.apple.com/). I know there was some sample code related to this somewhere. (I developed an interface NKE and recall finding something that helped get things going.) I don't know if it was on Apple's site but I can't find it there now. I'll check my notes at home and if I can come up with anything useful I'll sent a link to you later. Best regards, Mike _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.