WiFi monitor模式的配置和运行检查（Ubuntu系统）
| 阿里云国内75折 回扣 微信号：monov8 |
| 阿里云国际，腾讯云国际，低至75折。AWS 93折 免费开户实名账号 代冲值 优惠多多 微信号：monov8 飞机：@monov6 |
WiFi monitor模式的配置和运行检查
1. WiFi monitor模式介绍
通常大家对于WiFi的理解主要来自无线路由器和和接入无线路器的设备比如笔记本电脑手机智能电视机智能开关智能电饭煲等。由于这些设备使得我们的日常生活更加便捷。
从技术的角度来说这些智能设备都是基于IP网络在进行信息交互。说的更加专业一点就是这些设备都满足OSIOpen System Interconnection分层设计遵循IPv4/IPv6协议进行信息交互。
补充介绍下OSI七层模型
- L7应用层HTTP FTP TFTP SMTP SNMP DNS TELNET HTTPS POP3 DHCP
- L6表示层数据的表示、安全、压缩JPEG、ASCll、EBCDIC、加密格式等。在五层模型里面合并到应用层
- L5会话层建立、管理、终止会话。对应主机进程指本地主机与远程主机正在进行的会话。在五层模型里面合并到应用层
- L4传输层TCP UDP
- L3网络层ICMP IGMP IPIPV4 IPV6
- L2数据链路层建立逻辑连接、进行硬件地址寻址、差错校验等功能。将比特组合成字节进而组合成帧用MAC地址访问介质错误发现但不能纠正。
- L1物理层设备之间非结构化原始数据的传输和接收
这里所讲述的WiFi monitor模式就是运行在L2数据链路层从软件的角度来看就是最底层了在下面就是与硬件寄存器相关的操作(这块内容大部分就是驱动层硬件解决方案不同可能会有不同的差异)。
WiFi monitor就是在L2数据链路层对WiFi RF信号进行监视。
2. WiFi monitor模式查看
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.5 LTS
Release: 20.04
Codename: focal
$ uname -a
Linux daniel-ThinkPad-SL410 5.15.0-58-generic #64~20.04.1-Ubuntu SMP Fri Jan 6 16:42:31 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
注本文基于ubuntu Linux系统进行介绍windows的朋友请自行寻找相应的工具。
Step1确保计算机上有安装硬件WiFi无线网卡
Step2安装必要的工具
$ sudo apt-get install tcpdump wireless-tools net-tools
Step 3iw list查看无线网卡是否支持monitor模式
注如果无线网卡不支持该monitor模式如果需要请购买相应的无线网卡。
$ iw list
Wiphy phy0
max # scan SSIDs: 20
max scan IEs length: 195 bytes
max # sched scan SSIDs: 0
max # match sets: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CCMP-256 (00-0f-ac:10)
* GCMP-128 (00-0f-ac:8)
* GCMP-256 (00-0f-ac:9)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* monitor
Band 1:
Capabilities: 0x107e
HT20/HT40
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 4 usec (0x05)
HT Max RX data rate: 300 Mbps
HT RX MCS rate indexes supported: 0-15
TX unequal modulation not supported
HT TX Max spatial streams: 1
HT TX MCS rate indexes supported may differ
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (14.0 dBm)
* 2417 MHz [2] (14.0 dBm)
* 2422 MHz [3] (14.0 dBm)
* 2427 MHz [4] (14.0 dBm)
* 2432 MHz [5] (14.0 dBm)
* 2437 MHz [6] (14.0 dBm)
* 2442 MHz [7] (14.0 dBm)
* 2447 MHz [8] (14.0 dBm)
* 2452 MHz [9] (14.0 dBm)
* 2457 MHz [10] (14.0 dBm)
* 2462 MHz [11] (14.0 dBm)
* 2467 MHz [12] (14.0 dBm) (no IR)
* 2472 MHz [13] (14.0 dBm) (no IR)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* new_mpath
* set_mesh_config
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* remain_on_channel
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* connect
* disconnect
* set_qos_map
* set_multicast_to_unicast
software interface modes (can always be added):
* monitor
interface combinations are not supported
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports scan flush.
Device supports per-vif TX power setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Device supports static SMPS
Device supports dynamic SMPS
Device supports configuring vdev MAC-addr on create.
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xb0 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
Supported extended features:
* [ RRM ]: RRM
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ EXT_KEY_ID ]: extended key ID support
Step 4配置WiFi monitor模式
#查看笔记本网卡
$ nmcli device
DEVICE TYPE STATE CONNECTION
enp8s0 ethernet connected Wired connection 1
docker0 bridge connected docker0
wlp5s0 wifi disconnected --
lo loopback unmanaged --
#设置监听模式
$ sudo ifconfig wlp5s0 down
$ sudo iwconfig wlp5s0 mode monitor
$ sudo ifconfig wlp5s0 up
#查询当前网卡的模式
$ sudo iwconfig
lo no wireless extensions.
enp8s0 no wireless extensions.
wlp5s0 IEEE 802.11 Mode:Monitor Frequency:2.412 GHz Tx-Power=14 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
docker0 no wireless extensions.
Step 5查看&设置WiFi RF信道
$ sudo iwlist wlp5s0 channel
wlp5s0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.462 GHz (Channel 11)
#设置当前信道为6
$ sudo iwconfig wlp5s0 channel 6
$ sudo iwlist wlp5s0 channel
wlp5s0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.437 GHz (Channel 6)
Step 6检验WiFi monitor模式
通常我们周边的WiFi环境是很复杂的也就是说充满了RF信号所以一般来说每个信道都是有信息的会接收到RF L2数据链路报文。这也是为什么我们的带宽没有理想的那么高的速率。
PS.玩游戏关注时延的朋友记得一定用有线网络有线鼠标。无线都是坑
查看下当前6通道2.437 GHz频段上是否有数据
$ sudo tcpdump -i wlp5s0
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlp5s0, link-type IEEE802_11_RADIO (802.11 plus radiotap header), capture size 262144 bytes
09:04:25.630909 24.0 Mb/s 2437 MHz 11g -69dBm signal antenna 3 Request-To-Send TA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.656676 1.0 Mb/s 2437 MHz 11b -82dBm signal antenna 3 Beacon (ChinaNet-Yp4f) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.656816 24.0 Mb/s 2437 MHz 11g -72dBm signal antenna 3 Clear-To-Send RA:c0:d2:f3:2b:9f:54 (oui Unknown)
09:04:25.662118 1.0 Mb/s 2437 MHz 11b -79dBm signal antenna 3 Beacon (501) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.665980 1.0 Mb/s 2437 MHz 11b -73dBm signal antenna 3 Beacon (M-hM-^LM-^IM-hM-^NM-^IM-eM-.M-6) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.683112 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.683181 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.683423 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.683773 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.684074 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.686923 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.687011 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.687407 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.687486 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.697762 1.0 Mb/s 2437 MHz 11b -58dBm signal antenna 3 Beacon (suncheng) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.700238 1.0 Mb/s 2437 MHz 11b -58dBm signal antenna 3 Data IV:6763 Pad 20 KeyID 2
09:04:25.703526 1.0 Mb/s 2437 MHz 11b -74dBm signal antenna 3 Beacon (401) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.706720 1.0 Mb/s 2437 MHz 11b -58dBm signal antenna 3 Beacon () [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.707171 11.0 Mb/s 2437 MHz 11b -66dBm signal antenna 3 Acknowledgment RA:2a:d9:a0:0c:c4:62 (oui Unknown)
09:04:25.707868 24.0 Mb/s 2437 MHz 11g -69dBm signal antenna 3 Request-To-Send TA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.711027 11.0 Mb/s 2437 MHz 11b -66dBm signal antenna 3 Acknowledgment RA:2a:d9:a0:0c:c4:62 (oui Unknown)
09:04:25.718055 1.0 Mb/s 2437 MHz 11b -80dBm signal antenna 3 Beacon (Xiaomi_A2EC) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 7, PRIVACY
09:04:25.730225 1.0 Mb/s 2437 MHz 11b -18dBm signal antenna 3 Beacon (AutoConnect) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.741653 1.0 Mb/s 2437 MHz 11b -79dBm signal antenna 3 Beacon (TP-LINK-101) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.768447 1.0 Mb/s 2437 MHz 11b -74dBm signal antenna 3 Beacon (M-hM-^LM-^IM-hM-^NM-^IM-eM-.M-6) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.768732 11.0 Mb/s 2437 MHz 11b -67dBm signal antenna 3 Data IV:8fc9 Pad 20 KeyID 2
09:04:25.774773 1.0 Mb/s 2437 MHz 11b -76dBm signal antenna 3 Data IV:6a2d Pad 20 KeyID 1
09:04:25.794897 1.0 Mb/s 2437 MHz 11b -88dBm signal antenna 3 Beacon (101) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.798020 1.0 Mb/s 2437 MHz 11b -57dBm signal antenna 3 Beacon (suncheng) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.802698 1.0 Mb/s 2437 MHz 11b -58dBm signal antenna 3 Data IV:6764 Pad 20 KeyID 2
09:04:25.805997 1.0 Mb/s 2437 MHz 11b -74dBm signal antenna 3 Beacon (401) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.809156 1.0 Mb/s 2437 MHz 11b -59dBm signal antenna 3 Beacon () [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.833067 1.0 Mb/s 2437 MHz 11b -18dBm signal antenna 3 Beacon (AutoConnect) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.840922 1.0 Mb/s 2437 MHz 11b -84dBm signal antenna 3 Beacon (TP-LINK-101) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.853205 1.0 Mb/s 2437 MHz 11b -78dBm signal antenna 3 Beacon (wangxuemin) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.857430 1.0 Mb/s 2437 MHz 11b -74dBm signal antenna 3 Data IV:6d6f Pad 20 KeyID 1
09:04:25.864671 1.0 Mb/s 2437 MHz 11b -80dBm signal antenna 3 Probe Response (501) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] CH: 6, PRIVACY
09:04:25.883431 1.0 Mb/s 2437 MHz 11b -87dBm signal antenna 3 Beacon () [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.885002 24.0 Mb/s 2437 MHz 11g -72dBm signal antenna 3 BA RA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.885875 24.0 Mb/s 2437 MHz 11g -77dBm signal antenna 3 Request-To-Send TA:c6:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.886150 24.0 Mb/s 2437 MHz 11g -77dBm signal antenna 3 Request-To-Send TA:c6:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.886369 24.0 Mb/s 2437 MHz 11g -75dBm signal antenna 3 Request-To-Send TA:c6:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.888065 24.0 Mb/s 2437 MHz 11g -74dBm signal antenna 3 Clear-To-Send RA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.888655 24.0 Mb/s 2437 MHz 11g -77dBm signal antenna 3 Request-To-Send TA:c6:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.888964 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.889100 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.889290 24.0 Mb/s 2437 MHz 11g -72dBm signal antenna 3 BA RA:2a:d9:a0:0c:c4:62 (oui Unknown)
09:04:25.889991 24.0 Mb/s 2437 MHz 11g -76dBm signal antenna 3 Request-To-Send TA:a4:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.891854 24.0 Mb/s 2437 MHz 11g -63dBm signal antenna 3 Clear-To-Send RA:a4:1a:3a:1e:f9:9f (oui Unknown)
09:04:25.891862 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.891967 24.0 Mb/s 2437 MHz 11g -61dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.892418 24.0 Mb/s 2437 MHz 11g -62dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.893163 24.0 Mb/s 2437 MHz 11g -61dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.893288 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.895494 1.0 Mb/s 2437 MHz 11b -81dBm signal antenna 3
09:04:25.902891 24.0 Mb/s 2437 MHz 11g -70dBm signal antenna 3 Request-To-Send TA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.903699 6.0 Mb/s 2437 MHz 11g -79dBm signal antenna 3 Acknowledgment RA:cc:b5:d1:8a:f0:90 (oui Unknown)
09:04:25.904414 24.0 Mb/s 2437 MHz 11g -79dBm signal antenna 3 BA RA:cc:b5:d1:8a:f0:90 (oui Unknown)
09:04:25.931026 2437 MHz 11n -69dBm signal antenna 3 19.5 Mb/s MCS 2 20 MHz long GI mixed Data IV:dfe1 Pad 20 KeyID 0
09:04:25.932718 1.0 Mb/s 2437 MHz 11b -76dBm signal antenna 3 Beacon (501) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.935011 1.0 Mb/s 2437 MHz 11b -34dBm signal antenna 3 Beacon (AutoConnect) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.936286 11.0 Mb/s 2437 MHz 11b -67dBm signal antenna 3 Acknowledgment RA:2a:d9:a0:0c:c4:62 (oui Unknown)
09:04:25.943268 1.0 Mb/s 2437 MHz 11b -83dBm signal antenna 3 Beacon (TP-LINK-101) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY
09:04:25.943425 24.0 Mb/s 2437 MHz 11g -74dBm signal antenna 3 Clear-To-Send RA:60:3a:7c:77:22:f1 (oui Unknown)
09:04:25.946289 1.0 Mb/s 2437 MHz 11b -78dBm signal antenna 3 Beacon (xu) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 4, PRIVACY
09:04:25.957327 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.959083 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 Clear-To-Send RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.959092 6.0 Mb/s 2437 MHz 11g -78dBm signal antenna 3 Acknowledgment RA:cc:b5:d1:8a:f0:90 (oui Unknown)
09:04:25.959133 24.0 Mb/s 2437 MHz 11g -60dBm signal antenna 3 BA RA:b8:78:26:94:07:3e (oui Unknown)
09:04:25.978663 1.0 Mb/s 2437 MHz 11b -77dBm signal antenna 3 Beacon (Xiaomi_A2EC) [1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 Mbit] ESS CH: 7, PRIVACY
09:04:25.980290 24.0 Mb/s 2437 MHz 11g -22dBm signal antenna 3 Clear-To-Send RA:88:2d:53:be:74:d4 (oui Unknown)
09:04:25.980411 2437 MHz 11n -34dBm signal antenna 3 72.2 Mb/s MCS 7 20 MHz short GI mixed Data IV:3223 Pad 20 KeyID 0
09:04:25.980419 24.0 Mb/s 2437 MHz 11g -18dBm signal antenna 3 BA RA:88:2d:53:be:74:d4 (oui Unknown)
^C
73 packets captured
73 packets received by filter
0 packets dropped by kernel
3. 参考资料
【1】wikipedia: WiFi monitor mode
【2】wikipedia: OSI model - 7 layer