Hi, I am new to packet builder, I am trying to create a syn packet with the packet builder and it does not seem to work. 1. Add a new TCP packet. 2. Set the source IP. 3. Set the destination IP. 4. Set the source port. 5. Set the destination port. 6. Set the synchronize sequence flag to 1. 7. Send the packet. All other values are default. But on the destination PC, the port does not open or any packets come through on the sniffer. Please help. Thanks, JK.