Date: Mon, 20 Oct 2003 10:47:51 -0700 (PDT) From: sarat chandra Annadata <saratchandra_a@yahoo.com> To: freebsd-net@freebsd.org Cc: julian@elischer.org Subject: Help Broadcasting a UDP packet on the LAN:URGENT Message-ID: <20031020174751.60464.qmail@web20805.mail.yahoo.com>
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Hai, I am need of some urgent techinical help to pull me out of a little problem. I have been trying to broadcast a UDP packet(actually it is a DHCP offer packet) but havent' successfully done it sofar. The following is the descripttion about how I have been trying to do it. 1) I am creating a socket with sock_dgram option. 2)Next I am filling up the sockaddr_in structure, with IP address 255.255.255.255 and port number as DHCP client port number. 3)I am using the setsockopt call with at SOL_SOCKET level, with SO_BROADCAST FLAG. This call is not successfully returning. moreover I am successfully setting the flag at the IP-level in either case my send or sendto system calls fail. I want some guidance regarding this, I want to use only socket interface, in UNIX with C. Please pull me out of this, and I shall be grateful to you. A working piece of code will be of great help Thank you, Sincerely Sarat Chandra. --------------------------------- Do you Yahoo!? The New Yahoo! Shopping - with improved product search
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