hi all, in my attached code snippet i try to mmap the incoming socket data accoring to the kernel documentation which can also be found online: http://lxr.linux.no/linux+v2.6.30/Documentation/networking/packet_mmap.txt by doing a mmap() my program exits with -EINVAL and up to now i have no clue why... parametes should be right. do you have any idea? big thanks, daniel