Wireshark Display Filters
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# packets containing certificates (useful in WPA enterprise)
tls.handshake.certificate
# wlan.fc.type have four different values: 0, 1, 2, and 3: Management, Control, Data, and Extension frames, respectively.
wlan.fc.type == 2
# beacon frames
wlan.fc.type_subtype == 0x08
# specify ESSID
wlan.ssid contains "XYZ"
# filter by BSSID
wlan.bssid contains 00:01:20:43:21:12
# X represents frame types: 0 (management), 1 (control), 2 (data), and 3 (extension)
wlan.fc.type == X
# X represents frame subtypes {0x08 for beacons, 0x04 for probes}
wlan.fc.subtype == X
# EAPoL frames
wlan.fc.type_subtype in {0x0 0x1 0xb}
# search for a certain client MAC address
wlan.addr == xx.xx.xx.xx.xx.xx
Initial filter
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wlan.bssid contains 00:01:20:43:21:12 and (not subtype beacon) and not (type ctl) and not (subtype probe-req) and not (subtype probe-resp)