I have a nginx instance running on localhost:80 and I want to send it a raw TCP SYN packet.
So I generate a dummy packet and send it to lo interface via pcapplusplus. However, when the Wireshark is monitoring the lo, it says this packet is Null/Loopback and did not do more things, it seems. But if I write this packet to a pcap file, Wireshark can recognize it well. Two packet data is 100% same.
I'm a bit confused and what is the best practice to accomplish my needs?