Sometimes you know the protocol you’re looking for, just not the relevant fields you need to filter with.
If you like C-style syntax, you can also use & instead of and and || instead of or.
įor example, source MAC address becomes eth.src. tcp.dstport != 80: Destination tcp port is NOT 80įor the table below, create a filter by joining the relevant header and word below it with a.Layers 2-4įor any major protocol, there is query for each direction and either. If you create a filter and want to see how it is evaluated, dftest is bundled with Wireshark. Single quotes are recommended here for the display filter to avoid To use a display filter with tshark, use the -Y 'display filter'. Introduction to Display Filtersĭisplay filters allow you to use Wireshark’s powerful multi-pass packet processing capabilities. Hak5’s video on Display Filters in Wireshark is a good introduction. If you are unfamiliar with filtering for traffic, Filter with Regex: matches and containsĭisplay Filters are a large topic and a major part of Wireshark’s popularity.
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