Hi newbies, I am not able to resolve the dev_change_flags api in my 2.4.20 kernel. Could some one tell me the reason why it is happening? We can find the implementation of the api in ipv4/../dev.c Thanks iqbal -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/