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Newbee question: Unable to use wireshark filter syntax.

Hello, The Wireshark-filter. HTML clearly explains: ip.dst == 192.168.1.1 is a valid filter. However, if I put this filter in the "wireshark capture interfaces" dialog box in the line "Capture filter for selected interfaces", the background stays red. If I use the basic "UDP" statement in this filter dialog box, it works.

Any idea why the filter syntax does not seem to work in the dialog box? (The NIC is connected to a network where the router is 192.168.1.1 so i do not expect a problem from this side) Thanks in advance, Johi.

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Johi
asked 2019-07-25 10:52:01 +0000
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That is a display filter. If you want a capture filter, use one of these host 192.168.1.1 dst host 192.168.1.1

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millerlw
answered 2019-07-25 16:27:30 +0000
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Wireshark has two filter syntaxes, for capture filters, also known as BPF filter and display filters.

More information can be found in the User Guide, 4.13. Filtering while capturing and 6.3. Filtering Packets While Viewing.

grahamb's avatar
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grahamb
answered 2019-07-25 11:09:12 +0000
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cmaynard
updated 2019-07-25 14:02:44 +0000
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