Display Filter Reference: IEEE 802.11 Radiotap Capture header

Protocol field name: radiotap

Versions: 1.0.0 to 2.4.2

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Field name Description Type Versions
radiotap.ampdu A-MPDU status Label 1.10.0 to 2.4.2
radiotap.ampdu.delim_crc A-MPDU subframe delimiter CRC Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.ampdu.flags A-MPDU flags Unsigned integer, 2 bytes 1.10.0 to 2.4.2
radiotap.ampdu.flags.delim_crc_error Delimiter CRC error on this subframe Boolean 1.10.0 to 2.4.2
radiotap.ampdu.flags.is_zerolen This is a 0-length subframe Boolean 1.10.0 to 2.4.2
radiotap.ampdu.flags.last This is the last subframe of this A-MPDU Boolean 1.10.0 to 2.4.2
radiotap.ampdu.flags.lastknown Last subframe of this A-MPDU is known Boolean 1.10.0 to 2.4.2
radiotap.ampdu.flags.report_zerolen Driver reports 0-length subframes in this A-MPDU Boolean 1.10.0 to 2.4.2
radiotap.ampdu.reference A-MPDU reference number Unsigned integer, 4 bytes 1.10.0 to 2.4.2
radiotap.antenna Antenna Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.channel Channel Unsigned integer, 4 bytes 1.0.0 to 1.8.15
radiotap.channel.flags Channel flags Unsigned integer, 2 bytes 2.0.0 to 2.4.2
radiotap.channel.flags.2ghz 2 GHz spectrum Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.5ghz 5 GHz spectrum Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.cck Complementary Code Keying (CCK) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.dynamic Dynamic CCK-OFDM Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.gfsk Gaussian Frequency Shift Keying (GFSK) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.gsm GSM (900MHz) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.half Half Rate Channel (10MHz Channel Width) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.ofdm Orthogonal Frequency-Division Multiplexing (OFDM) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.passive Passive Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.quarter Quarter Rate Channel (5MHz Channel Width) Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.sturbo Static Turbo Boolean 2.0.0 to 2.4.2
radiotap.channel.flags.turbo Turbo Boolean 2.0.0 to 2.4.2
radiotap.channel.freq Channel frequency Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.channel.type Channel type Unsigned integer, 2 bytes 1.0.0 to 1.12.13
radiotap.channel.type.2ghz 2 GHz spectrum Boolean 1.0.0 to 1.12.13
radiotap.channel.type.5ghz 5 GHz spectrum Boolean 1.0.0 to 1.12.13
radiotap.channel.type.cck Complementary Code Keying (CCK) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.dynamic Dynamic CCK-OFDM Boolean 1.0.0 to 1.12.13
radiotap.channel.type.gfsk Gaussian Frequency Shift Keying (GFSK) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.gsm GSM (900MHz) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.half Half Rate Channel (10MHz Channel Width) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.ofdm Orthogonal Frequency-Division Multiplexing (OFDM) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.passive Passive Boolean 1.0.0 to 1.12.13
radiotap.channel.type.quarter Quarter Rate Channel (5MHz Channel Width) Boolean 1.0.0 to 1.12.13
radiotap.channel.type.sturbo Static Turbo Boolean 1.0.0 to 1.12.13
radiotap.channel.type.turbo Turbo Boolean 1.0.0 to 1.12.13
radiotap.channel.xtype.passive Passive Boolean 1.0.0 to 2.4.2
radiotap.data_past_header Expert Info Label 1.12.0 to 2.4.2
radiotap.datarate Data rate (Mb/s) Floating point (single-precision) 1.0.0 to 2.4.2
radiotap.db_antnoise SSI Noise Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.db_antsignal SSI Signal Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.db_txattenuation Transmit attenuation (dB) Unsigned integer, 2 bytes 1.0.0 to 2.4.2
radiotap.dbm_antnoise SSI Noise Signed integer, 4 bytes 1.6.0 to 2.4.2
radiotap.dbm_antsignal SSI Signal Signed integer, 4 bytes 1.0.0 to 2.4.2
radiotap.fcs 802.11 FCS Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.fcs_bad Bad FCS Boolean 1.0.0 to 2.4.2
radiotap.fhss.hopset FHSS Hop Set Unsigned integer, 1 byte 1.0.0 to 2.4.2
radiotap.fhss.pattern FHSS Pattern Unsigned integer, 1 byte 1.0.0 to 2.4.2
radiotap.flags Flags Unsigned integer, 1 byte 1.0.0 to 2.4.2
radiotap.flags.badfcs Bad FCS Boolean 1.0.0 to 2.4.2
radiotap.flags.cfp CFP Boolean 1.0.0 to 2.4.2
radiotap.flags.datapad Data Pad Boolean 1.0.0 to 2.4.2
radiotap.flags.fcs FCS at end Boolean 1.0.0 to 2.4.2
radiotap.flags.frag Fragmentation Boolean 1.0.0 to 2.4.2
radiotap.flags.preamble Preamble Boolean 1.0.0 to 2.4.2
radiotap.flags.shortgi Short GI Boolean 1.0.0 to 2.4.2
radiotap.flags.wep WEP Boolean 1.0.0 to 2.4.2
radiotap.length Header length Unsigned integer, 2 bytes 1.0.0 to 2.4.2
radiotap.mactime MAC timestamp Unsigned integer, 8 bytes 1.0.0 to 2.4.2
radiotap.mcs MCS information Label 1.6.0 to 2.4.2
radiotap.mcs.bw Bandwidth Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.fec FEC type Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.format Format Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.gi Guard interval Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.have_bw Bandwidth Boolean 1.6.0 to 2.4.2
radiotap.mcs.have_fec FEC type Boolean 1.6.0 to 2.4.2
radiotap.mcs.have_format Format Boolean 1.6.0 to 2.4.2
radiotap.mcs.have_gi Guard interval Boolean 1.6.0 to 2.4.2
radiotap.mcs.have_gid Group ID Boolean 1.10.0 to 2.4.2
radiotap.mcs.have_index MCS index Boolean 1.6.0 to 2.4.2
radiotap.mcs.have_ness Number of extension spatial streams Boolean 2.0.0 to 2.4.2
radiotap.mcs.have_paid Partial AID Boolean 1.10.0 to 2.4.2
radiotap.mcs.have_stbc STBC streams Boolean 1.8.0 to 2.4.2
radiotap.mcs.index MCS index Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.known Known MCS information Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.mcs.ness_bit1 Number of extension spatial streams bit 1 Unsigned integer, 1 byte 2.0.0 to 2.4.2
radiotap.mcs.stbc STBC streams Unsigned integer, 1 byte 1.8.0 to 2.4.2
radiotap.pad Header pad Unsigned integer, 1 byte 1.0.0 to 2.4.2
radiotap.present Present flags Label 1.0.0 to 2.4.2
radiotap.present.ampdu A-MPDU Status Boolean 1.10.0 to 2.4.2
radiotap.present.antenna Antenna Boolean 1.0.0 to 2.4.2
radiotap.present.channel Channel Boolean 1.0.0 to 2.4.2
radiotap.present.db_antnoise dB Antenna Noise Boolean 1.0.0 to 2.4.2
radiotap.present.db_antsignal dB Antenna Signal Boolean 1.0.0 to 2.4.2
radiotap.present.db_tx_attenuation dB TX Attenuation Boolean 1.0.0 to 2.4.2
radiotap.present.dbm_antnoise dBm Antenna Noise Boolean 1.0.0 to 2.4.2
radiotap.present.dbm_antsignal dBm Antenna Signal Boolean 1.0.0 to 2.4.2
radiotap.present.dbm_tx_attenuation DBM TX Attenuation Boolean 1.0.0 to 1.4.11, 1.6.0 to 1.6.5
radiotap.present.dbm_tx_power dBm TX Power Boolean 1.4.12 to 1.4.15, 1.6.6 to 2.4.2
radiotap.present.ext Ext Boolean 1.0.0 to 2.4.2
radiotap.present.fcs FCS in header Boolean 1.0.0 to 2.4.2
radiotap.present.fhss FHSS Boolean 1.0.0 to 2.4.2
radiotap.present.flags Flags Boolean 1.0.0 to 2.4.2
radiotap.present.lock_quality Lock Quality Boolean 1.0.0 to 2.4.2
radiotap.present.mcs MCS information Boolean 1.6.0 to 2.4.2
radiotap.present.radiotap_and_vendor Expert Info Label 1.12.0 to 2.4.2
radiotap.present.rate Rate Boolean 1.0.0 to 2.4.2
radiotap.present.reserved Reserved Unsigned integer, 4 bytes 1.10.0 to 2.4.2
radiotap.present.reserved.unknown Expert Info Label 1.12.0 to 2.4.2
radiotap.present.rtap_ns Radiotap NS next Boolean 1.6.0 to 2.4.2
radiotap.present.rxflags RX flags Boolean 1.2.0 to 2.4.2
radiotap.present.timestamp frame timestamp Boolean 2.4.0 to 2.4.2
radiotap.present.tsft TSFT Boolean 1.0.0 to 2.4.2
radiotap.present.tx_attenuation TX Attenuation Boolean 1.0.0 to 2.4.2
radiotap.present.vendor_ns Vendor NS next Boolean 1.6.0 to 2.4.2
radiotap.present.vht VHT information Boolean 1.10.0 to 2.4.2
radiotap.present.word Present flags word Unsigned integer, 4 bytes 2.2.3 to 2.4.2
radiotap.present.xchannel Channel+ Boolean 1.0.0 to 2.4.2
radiotap.quality Signal Quality Unsigned integer, 2 bytes 1.0.0 to 2.4.2
radiotap.rxflags RX flags Unsigned integer, 2 bytes 1.2.0 to 2.4.2
radiotap.rxflags.badplcp Bad PLCP Boolean 1.2.0 to 2.4.2
radiotap.timestamp timestamp information Label 2.4.0 to 2.4.2
radiotap.timestamp.accuracy accuracy Unsigned integer, 2 bytes 2.4.0 to 2.4.2
radiotap.timestamp.flags.32bit 32-bit counter Boolean 2.4.0 to 2.4.2
radiotap.timestamp.flags.accuracy accuracy field Boolean 2.4.0 to 2.4.2
radiotap.timestamp.samplingpos sampling position Unsigned integer, 1 byte 2.4.0 to 2.4.2
radiotap.timestamp.ts timestamp Unsigned integer, 8 bytes 2.4.0 to 2.4.2
radiotap.timestamp.unit time unit Unsigned integer, 1 byte 2.4.0 to 2.4.2
radiotap.txattenuation Transmit attenuation Unsigned integer, 2 bytes 1.0.0 to 2.4.2
radiotap.txpower Transmit power Signed integer, 4 bytes 1.0.0 to 2.4.2
radiotap.vendor_data Vendor data Label 1.6.0 to 2.4.2
radiotap.vendor_data_len Vendor data length Unsigned integer, 2 bytes 1.6.0 to 2.4.2
radiotap.vendor_namespace Vendor namespace Sequence of bytes 1.6.0 to 2.4.2
radiotap.vendor_oui Vendor OUI Sequence of bytes 1.6.0 to 2.4.2
radiotap.vendor_subns Vendor sub namespace Unsigned integer, 1 byte 1.6.0 to 2.4.2
radiotap.version Header revision Unsigned integer, 1 byte 1.0.0 to 2.4.2
radiotap.vht VHT information Label 1.10.0 to 2.4.2
radiotap.vht.beamformed Beamformed Boolean 1.10.0 to 2.4.2
radiotap.vht.bw Bandwidth Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.coding.0 Coding 0 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.coding.1 Coding 1 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.coding.2 Coding 2 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.coding.3 Coding 3 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.datarate.0 Data rate (Mb/s) 0 Floating point (single-precision) 1.10.0 to 2.4.2
radiotap.vht.datarate.1 Data rate (Mb/s) 1 Floating point (single-precision) 1.10.0 to 2.4.2
radiotap.vht.datarate.2 Data rate (Mb/s) 2 Floating point (single-precision) 1.10.0 to 2.4.2
radiotap.vht.datarate.3 Data rate (Mb/s) 3 Floating point (single-precision) 1.10.0 to 2.4.2
radiotap.vht.datarate.invalid Expert Info Label 2.2.4 to 2.4.2
radiotap.vht.gi Guard interval Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.gid Group Id Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.have_beamformed Beamformed Boolean 1.10.0 to 2.4.2
radiotap.vht.have_gi Guard interval Boolean 1.10.0 to 2.4.2
radiotap.vht.have_sgi_nsym_da SGI Nsym disambiguation Boolean 1.10.0 to 2.4.2
radiotap.vht.have_stbc STBC Boolean 1.10.0 to 2.4.2
radiotap.vht.have_txop_ps TXOP_PS_NOT_ALLOWED Boolean 1.10.0 to 2.4.2
radiotap.vht.known Known VHT information Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.ldpc_extra LDPC extra OFDM symbol Boolean 1.10.0 to 2.4.2
radiotap.vht.mcs.0 MCS index 0 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.mcs.1 MCS index 1 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.mcs.2 MCS index 2 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.mcs.3 MCS index 3 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nss.0 Spatial streams 0 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nss.1 Spatial streams 1 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nss.2 Spatial streams 2 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nss.3 Spatial streams 3 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nsts.0 Space-time streams 0 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nsts.1 Space-time streams 1 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nsts.2 Space-time streams 2 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.nsts.3 Space-time streams 3 Unsigned integer, 1 byte 1.10.0 to 2.4.2
radiotap.vht.paid Partial AID Unsigned integer, 2 bytes 1.10.0 to 2.4.2
radiotap.vht.sgi_nsym_da SGI Nsym disambiguation Boolean 1.10.0 to 2.4.2
radiotap.vht.stbc STBC Boolean 1.10.0 to 2.4.2
radiotap.vht.txop_ps TXOP_PS_NOT_ALLOWED Boolean 1.10.0 to 2.4.2
radiotap.vht.user User Label 1.10.0 to 2.4.2
radiotap.xchannel Channel number Unsigned integer, 4 bytes 1.0.0 to 1.12.13
radiotap.xchannel.channel Channel number Unsigned integer, 4 bytes 2.0.0 to 2.4.2
radiotap.xchannel.flags Channel flags Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.xchannel.flags.2ghz 2 GHz spectrum Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.5ghz 5 GHz spectrum Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.cck Complementary Code Keying (CCK) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.dynamic Dynamic CCK-OFDM Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.gfsk Gaussian Frequency Shift Keying (GFSK) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.gsm GSM (900MHz) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.half Half Rate Channel (10MHz Channel Width) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.ht20 HT Channel (20MHz Channel Width) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.ht40d HT Channel (40MHz Channel Width with Extension channel below) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.ht40u HT Channel (40MHz Channel Width with Extension channel above) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.ofdm Orthogonal Frequency-Division Multiplexing (OFDM) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.quarter Quarter Rate Channel (5MHz Channel Width) Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.sturbo Static Turbo Boolean 2.0.0 to 2.4.2
radiotap.xchannel.flags.turbo Turbo Boolean 2.0.0 to 2.4.2
radiotap.xchannel.freq Channel frequency Unsigned integer, 4 bytes 1.0.0 to 2.4.2
radiotap.xchannel.type.2ghz 2 GHz spectrum Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.5ghz 5 GHz spectrum Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.cck Complementary Code Keying (CCK) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.dynamic Dynamic CCK-OFDM Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.gfsk Gaussian Frequency Shift Keying (GFSK) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.gsm GSM (900MHz) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.half Half Rate Channel (10MHz Channel Width) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.ht20 HT Channel (20MHz Channel Width) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.ht40d HT Channel (40MHz Channel Width with Extension channel below) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.ht40u HT Channel (40MHz Channel Width with Extension channel above) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.ofdm Orthogonal Frequency-Division Multiplexing (OFDM) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.quarter Quarter Rate Channel (5MHz Channel Width) Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.sturbo Static Turbo Boolean 1.0.0 to 1.12.13
radiotap.xchannel.type.turbo Turbo Boolean 1.0.0 to 1.12.13
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