5/10/2023 0 Comments Wireshark filter tcp port 80The "Filter Expression" dialog box can help you build display filters. For display filters, try the display filters page on the Wireshark wiki. This means that the first filter expression must be read as 'show me the packets for which tcp.port exists and equals 80, and ip.src exists and equals 192.168.2.1'. The 'exists' operator has the highest priority. For example, to capture only packets sent to port 80, use: dst tcp port 80Ĭouple that with an http display filter, or use: tcp.dstport = 80 & httpįor more on capture filters, read " Filtering while capturing" from the Wireshark user guide, the capture filters page on the Wireshark wiki, or pcap-filter (7) man page. Remember that whenever a protocol or field name occurs in an expression, the 'exists' operator is implicitly called. If you want to measure the number of connections rather than the amount of data, you can limit the capture or display filters to one side of the communication. Note that a filter of http is not equivalent to the other two, which will include handshake and termination packets. Ping packets should use an ICMP type of 8 (echo) or 0 (echo reply), so you could use a capture filter of: icmpĪnd a display filter of: icmp.type = 8 || icmp.type = 0įor HTTP, you can use a capture filter of: tcp port 80 tcp.port 80 At the network layer, you can limit the results to an IP address using this display filter: ip.addr 93.184.216.34 These display filters can also be combined: ip.addr 93.184.216.34 and tcp.port 80 Finally you can set a capture filter which controls the data that gets saved to a capture file.
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