Wireshark is an open-source network protocol analysis software program, widely considered the industry standard. Wireshark is the de facto, go-to, you-need-to-know-how-to-use, application to capture and investigate network traffic.Īnd because Wireshark is the predominant tool for this job, let’s go over some application basics, such as where you can download Wireshark, how to capture network packets, how to use filters, and more. Then the picture changes and you need to reassess the situation.If you find yourself troubleshooting network issues, and you have to inspect individual packets, you need to use Wireshark. If you have confirmed you are tracing with the right interface and you have correctly typed your display filter, and you /still/ not seeing any packets, then the only thing to conclude is that those packets were never sent or received on your network interface. Then you should /only/ see packets with a source or destination port 8080. Once the trace has started, then you should be able to use type your filter (the /display/ filter) into the filter toolbar in the Wireshark interface.

Then select that interface and click the Start button. To do this quickly and simply, I would click Capture > Interfaces and confirm which interface is receiving packets.

tcp port 8080 is /capture/ filter, but tcp.port = 8080 is /display/ filter.įirst thing I would confirm is that I am using the right interface. You have to decide whether to use a /capture/ filter or a /display/ filter - the syntax is different between those two filter types.

Wireshark localhost port filter