Is it possible that we can add some loadable module into the kernel to get a pid of a daemon-process and then somehow trace routing socket messages coming in / going out from the kernel to that particular daemon ? The thing why I am in need of this is that there are two daemons , one daemon is responsible for configuring the interfaces ...and the second is actually awaiting the updates from the kernel ( that it should send in case it sees that there is a change in the ifstate for the interface ---IFD update) ... any resources / material would be of great help.Thanks and regards. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/