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<P><FONT color=#000000>Hi,</FONT></P>
<P><FONT color=#000000>I'm new with pcap (C++, windows server 2003, pcap ver 3.1) and I would like to get some tips about a real-time appication that I have written:</FONT></P>
<P>1. The application create 2 threads. Each thread using its' own pcap instance, where each thread reads a packet, manipuilates it and then sends it (using the pcap instance. Read, manipulte and send are implemented on each pcap handler).</P>
<P>2. Each thread is handling different traffic (different pcap filters).</P>
<P>3. The 2 pcap instances share the same NIC.</P>
<P>4. I get a little pcap send packets errors.</P>
<P> </P>
<P>Do I have to use critical sections / synchronization objects with the above? As I wrote, I use 2 differnet pcap instances but they share the same physical NIC.</P>
<P>What can be the reason for the pcap send packet errors? I get only a generic error ("send error: PacketSendPacket failed").</P>
<P> </P>
<P>Thanks for the help,</P>
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