使用 Raspberry Pi Zero 2 和 Debian。我正在尝试使用 iwconfig 理解/解密输出。仔细研究我自己的路由器的结果,我可以看到使用该命令会给我两次 ESSID,但质量和信号属性不同。为什么?
BSS 5c:62:8b:ca:2e:9c(on wlan0)
last seen: 1537.955s [boottime]
TSF: 0 usec (0d, 00:00:00)
freq: 2432
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime RadioMeasure (0x1431)
signal: -28.00 dBm
last seen: 0 ms ago
SSID: dev
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 5
Country: DE Environment: Indoor/Outdoor
Channels [1 - 13] @ 20 dBm
TPC report: TX power: 18 dBm
ERP: <no flags>
Extended supported rates: 24.0 36.0 48.0 54.0
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
RM enabled capabilities:
Capabilities: 0x73 0xd0 0x00 0x00 0x0c
Link Measurement
Neighbor Report
Beacon Passive Measurement
Beacon Active Measurement
Beacon Table Measurement
LCI Measurement
Transmit Stream/Category Measurement
Triggered Transmit Stream/Category
FTM Range Report
Civic Location Measurement
Nonoperating Channel Max Measurement Duration: 0
Measurement Pilot Capability: 4
HT capabilities:
Capabilities: 0x19ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HT operation:
* primary channel: 5
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 0
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities:
* Extended Channel Switching
* TFS
* WNM-Sleep Mode
* TIM Broadcast
* BSS Transition
* SSID List
* Operating Mode Notification
* Max Number Of MSDUs In A-MSDU is unlimited
VHT capabilities:
VHT Capabilities (0x33817992):
Max MPDU length: 11454
Supported Channel Width: neither 160 nor 80+80
RX LDPC
TX STBC
SU Beamformer
SU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT operation:
* channel width: 0 (20 or 40 MHz)
* center freq segment 1: 7
* center freq segment 2: 0
* VHT basic MCS set: 0xfffc
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bb16fd7a-0e68-4333-b713-5c628bca2e9a
* Manufacturer: TP-Link
* Model: Deco XE75
* Model Number: Deco XE75
* Serial Number: 0
* Primary Device Type: 6-0050f204-1
* Device name: Whole-home Wi-Fi
* Config methods:
* RF Bands: 0x3
* Version2: 2.0
BSS 5c:62:8b:ca:2e:9d(on wlan0)
last seen: 1537.955s [boottime]
TSF: 0 usec (0d, 00:00:00)
freq: 5180
beacon interval: 100 TUs
capability: ESS Privacy SpectrumMgmt ShortSlotTime RadioMeasure (0x1511)
signal: -37.00 dBm
last seen: 0 ms ago
SSID: dev
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 36
Country: DE Environment: Indoor/Outdoor
Channels [36 - 36] @ 23 dBm
Channels [40 - 40] @ 23 dBm
Channels [44 - 44] @ 23 dBm
Channels [48 - 48] @ 23 dBm
Channels [52 - 52] @ 23 dBm
Channels [56 - 56] @ 23 dBm
Channels [60 - 60] @ 23 dBm
Channels [64 - 64] @ 23 dBm
Power constraint: 3 dB
TPC report: TX power: 22 dBm
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c)
RM enabled capabilities:
Capabilities: 0x73 0xd0 0x00 0x00 0x0c
Link Measurement
Neighbor Report
Beacon Passive Measurement
Beacon Active Measurement
Beacon Table Measurement
LCI Measurement
Transmit Stream/Category Measurement
Triggered Transmit Stream/Category
FTM Range Report
Civic Location Measurement
Nonoperating Channel Max Measurement Duration: 0
Measurement Pilot Capability: 4
HT capabilities:
Capabilities: 0x9ef
RX LDPC
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HT operation:
* primary channel: 36
* secondary channel offset: above
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 1
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
Extended capabilities:
* Extended Channel Switching
* TFS
* WNM-Sleep Mode
* TIM Broadcast
* BSS Transition
* SSID List
* Operating Mode Notification
* Max Number Of MSDUs In A-MSDU is unlimited
VHT capabilities:
VHT Capabilities (0x3381f9f6):
Max MPDU length: 11454
Supported Channel Width: 160 MHz
RX LDPC
short GI (80 MHz)
short GI (160/80+80 MHz)
TX STBC
SU Beamformer
SU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT operation:
* channel width: 1 (80 MHz)
* center freq segment 1: 42
* center freq segment 2: 50
* VHT basic MCS set: 0xfffc
Transmit Power Envelope:
* Local Maximum Transmit Power For 20 MHz: 23 dBm
* Local Maximum Transmit Power For 40 MHz: 23 dBm
* Local Maximum Transmit Power For 80 MHz: 23 dBm
* Local Maximum Transmit Power For 160/80+80 MHz: 23 dBm
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: bb16fd7a-0e68-4333-b713-5c628bca2e9a
* Manufacturer: TP-Link
* Model: Deco XE75
* Model Number: Deco XE75
* Serial Number: 0
* Primary Device Type: 6-0050f204-1
* Device name: Whole-home Wi-Fi
* Config methods:
* RF Bands: 0x3
* Version2: 2.0