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Raw socket help

Hi
This is my first post and am a newbie to network programming.
My currrent assignment is concerned with DHCP client server programming and need some help with that.

I need to request two IP addresses on the client side from the server. I have a single LAN card and the request is sent from client on the same LAN card. The first request contains the preffered IP address and the MAc address and is sent using sendto() function inside another function send_packet(). The second request contains a preffered IP address and a third parth MAC address(not the same address on which the client is working). In sendto() function i get a message "such a device does not exist". Not surprised by that, but i need to get this working. Ne ideas from ne one.
I heard i can use RAW sockets instead of Datagram. Will this put the card in promiscous mode? Is this a solution?

http://www.isc.org/index.pl?/sw/dhcp/

This is the code im using at the client and server side to run the daemons.

Pls help

Thanks in advance
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Apr 22 '07 #1
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