> Ok I have a question regarding sending packets. Basically, when I receive a > packet, I strip it down and get only the information that is important to me > - IP and (UDP or TCP) headers, the data, and the trailer (if there is any). > Now, if another application hands me this exact information (ie. IP and (UDP > or TCP) headers, the data, and the trailer) in 1 packet in binary format, > can I just use pcap_sendpacket() to send that packet out? Thanks.
Where is the packet coming from? If your system is the original destination, then in order for the packet to go anywhere, you'd have to update the destination address, and therefore the checksum. There is also the question of the ethernet frame. For a packet to processed by the correct system in an ethernet, it has to specify the correct ethernet address to receive it, which it does by using arp. If you excude the ethenet header, it won't go anywhere. hth, Mark ================================================================== This is the WinPcap users list. It is archived at http://www.mail-archive.com/[EMAIL PROTECTED]/ To unsubscribe use mailto: [EMAIL PROTECTED] ==================================================================
