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I only want to get UDP packets with source port 8000

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I used the tshark command "tshark -i eth1 udp dst port 8000", but no data packets were obtained. I want to ask if the command is correct.

hahaha's avatar
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hahaha
asked 2021-06-23 08:11:36 +0000
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I want to ask if the command is correct.

No, it's not.

You want packets with the source port being 8000, but "dst port 8000" matches packets with the destination port being 8000.

Try

tshark -i eth1 udp src port 8000
Guy Harris's avatar
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Guy Harris
answered 2021-06-23 08:38:38 +0000
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