Date: Mon, 6 Oct 2008 17:30:23 +1300 From: Ryan French <rfrench@freebsd.org> To: freebsd-net@freebsd.org Subject: Getting packets MAC source address in if_ethersubr.c Message-ID: <200810061730.23641.rfrench@freebsd.org>
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Hi All, For my implementation of MPLS I have just about run out of time for my dissertation so at the moment I am trying to create fake routing table entries e.t.c. rather than doing this properly (I will be doing this once uni is finished and I have more free time to work on it). I now have receiving, decoding and sending of packets working, except for one small problem. When I send a packet back out the MAC address is wrong. I am looking for a way in the ether_output function in if_ethersubr.c that I can get the MAC address of the source of the packet and then just send it back to that source. If anyone knows how to do this without having to use arpresolve or anything like that (the IP address of the destination is not going to be the same as the IP destination in the packet) or without having to setup a proper routing table then it would be much appreciated. Thanks, -Ryan
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