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I'm trying to filter out HTTP GET with wireshark, but the string provided on the official page isn't working at all:

port 80 and tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420

Wireshark on my system can't parse that. What's wrong?

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up vote 3 down vote accepted

The wiki page may be outdated. Instead of the example posted there, you could just use:

http.request.method == "GET"

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