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default capture filters

asked 2021-06-05 15:55:29 +0000

quest4answer gravatar image

updated 2021-06-05 15:56:14 +0000


I have a question regarding default capture filters. If i goto capture>capture filters. i see bunch of filerers. Are those effective by default capture filters?


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The history/commits of the cfilters file.

Ethereal-dev - New: global default files for cfilters/colorfilters/dfilters

The idea behind this is: after installation of a new Ethereal, the
dialogs for "Color Filters", "Display Filters" and "Coloring Rules" are
just left blank. There's no real starting point for own experiments, and
"learning by doing" can be very difficult here.

Can you expand on what you were looking for.

Chuckc gravatar imageChuckc ( 2021-06-05 19:28:22 +0000 )edit

my point was there is a list of capture fitler by default. are they effective by default?

quest4answer gravatar imagequest4answer ( 2021-06-06 22:51:28 +0000 )edit

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answered 2021-06-06 15:54:07 +0000

updated 2021-06-06 15:55:29 +0000

Hello, the capture filter you see in capture -> capture filters can be used as predefined filters. (See screenshot)

The default filter which is used is empty.

Hope I got your question right.

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what do you mean by predefined? for example if i only want to capture only http traffic.. is "tcp port http" effective?

quest4answer gravatar imagequest4answer ( 2021-06-06 22:57:09 +0000 )edit

Either you put int the field "Enter a capture filter:tcp port http or

you can press the green flag and select the filter HTTP TCP port (80) from the list which appears there. As it can be seen on the screenshot. And then the capture filter tcp port http will be used.

The main idea of capture -> capture filters is related to ethereal, where the capture procedure worked a little bit different in the beginning as far as I can remember and there the capture filter dialog had have more relevant.

But is of course it is still fantastic that it is there and you can save your favorite and maybe complicated capture filters.

Christian_R gravatar imageChristian_R ( 2021-06-07 20:15:14 +0000 )edit

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Asked: 2021-06-05 15:55:29 +0000

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Last updated: Jun 06 '21