HI Thanx Mani. That bit of code really helped.I got to know that ip is stored in 2-5 indices of sa _data. Thanx to others too.Anyways, i ahve two more queries: How do i make sure that buffer that is receiving the packets from an interface is not less than the pkt size. In other words, i want to make the buffer size dynamic. How is it possible??? Second question is :inorder to send packets using sendto call, do i need to bind the socket to an interface??Or just creating a socket and then specifying the destination address in sendto field will do the job??? Paridhi __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site http://webhosting.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
