Hi, If sendto fails (returns -1) and errno is 0 then what can be the problem? I'm trying to send an ICMP echo request with a RAW socket with providing the IP header (IP_HDRINCL) myself. Thanks, feketga -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/