Therefore it makes sense also having a look at the rest of the traffic on the network. ![]() There are 65535 ports available for use, and in a normal Wireshark capture. The equivalent example of the mentioned "host 192.168.12.89" for the display filter is "ip.addr = 192.168.12.89"Īlso this option can be useful for viewing only the telegrams that belong to the device to be debugged, it is possible that the troubles of a station are caused by telegrams that are not directed to the station in questions (e.g. Capture filters (like tcp port 80 ) are not to be confused with display filters (like tcp.port 80 ). All of the messages exchanged in a network use a logical port. The display filter syntax is not identical to the capture filter syntax. It is also possible to filter the telegrams of an already captured file. In this case the "display filter" is to be used (refer to FAQ 100535). In Wireshark open the menu point "Edit" -> "Capture filters", and enter there a name which you want and for the Filter string. If you have confirmed you are tracing with the right 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. It is also possible combining several expresions. Then select that interface and click the Start button.
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