![]() ![]() For both HTTP and HTTPS you'd be looking at ip.addr = 10.0.0.1 & (tcp.port = 80 || tcp.port = 443). If you wanted that to include HTTPS traffic (TCP port 443) you could modify it to read host 10.0.0.1 and tcp and (port 80 or port 443).įor a display filter to do the same thing w/ HTTP only you'd be looking at ip.addr = 10.0.0.1 & tcp.port = 80. To capture only HTTP traffic to/from the host 10.0.0.1, for example, you could use the capture filter host 10.0.0.1 and tcp and port 80. Wireshark capture filters use tcpdump filter syntax, so an article about tcpdump filters will help you out. If you're going to be doing a long-term capture and you want to limit the size of your capture files you'll probably want to use a capture filter. You can learn more about Wireshark display filters from the Wireshark wiki. Display filters are used to filter out traffic from display but aren't used to filter out traffic during capture. Lastly, a shorter form of Gerald's capture filter is, 'tcp port 80 or 443', since this is allowed per /manpages/pcap-filter.7.html, which states, 'If an identifier is given without a keyword, the most recent keyword is assumed.'. The syntax you're showing there is a Wireshark display filter. You should see that tcpdump -d 'tcp port 80' and tcpdump -d 'tcp port http' produce the same output. ![]() Here are some screenshots.You need to differentiate between capture filters and display filters. I have a feeling that is for http only.ĮDIT - To reply to v.j's response and have the ability to upload an img: I can verify it doesn't work by looking at the messages that contain "Message One" and then filtering data-text-line contains "Message One" and they all disappear when they shouldn't. ![]() I Googled a little bit and someone said use data-text-lines contains "Message Two", but that doesn't work. How do I set up the filter to prove that I am not receiving the "Message Two" messages? While I am receiving all those, I expect a few messages that contain "Message Two" ![]() I am expecting messages that contain "Message One" and I can see them, thousands of them. I set up wireshark to capture on the Ethernet card I am using on my local machine and filter on ip.addr = and I can see the traffic. I am trying to prove that my service is behaving properly and that the service it communicates to is not sending the expected data. I have a windows service that uses winsock communicating to another windows service that uses winsock. ![]()
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