Question

我一直在使用TCPDump进行一些实验，但我遇到了问题。以下面的捕获为例：

2014-10-12 18:46:21.351515 7314729679us tsft 1.0 Mb/s 2432 MHz 11b -53dB signal antenna 1 0us BSSID:00:14:bf:96:b7:10 DA:ff:ff:ff:ff:ff:ff SA:00:14:bf:96:b7:10 Beacon (Style) [1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 Mbit] ESS CH: 11, PRIVACY
2014-10-12 18:46:21.453908 7314832079us tsft 1.0 Mb/s 2432 MHz 11b -34dB signal antenna 1 0us BSSID:00:14:bf:96:b7:10 DA:ff:ff:ff:ff:ff:ff SA:00:14:bf:96:b7:10 Beacon (Style) [1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 Mbit] ESS CH: 11, PRIVACY
2014-10-12 18:46:21.556314 7314934481us tsft 1.0 Mb/s 2432 MHz 11b -32dB signal antenna 1 0us BSSID:00:14:bf:96:b7:10 DA:ff:ff:ff:ff:ff:ff SA:00:14:bf:96:b7:10 Beacon (Style) [1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 Mbit] ESS CH: 11, PRIVACY
2014-10-12 18:46:21.617142 7314995309us tsft 1.0 Mb/s 2432 MHz 11b -69dB signal antenna 1 0us BSSID:08:60:6e:64:6f:78 DA:ff:ff:ff:ff:ff:ff SA:08:60:6e:64:6f:78 Beacon (ASUS) [1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 Mbit] ESS CH: 3, PRIVACY
2014-10-12 18:46:21.632972 7315011135us tsft 1.0 Mb/s 2432 MHz 11b -79dB signal antenna 1 0us BSSID:00:1c:10:27:bf:56 DA:ff:ff:ff:ff:ff:ff SA:00:1c:10:27:bf:56 Beacon (BATMAN) [1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 Mbit] ESS CH: 6, PRIVACY

如果我捕获数据包，数据包中的SIGNAL值代表什么？它是否代表数据包的发送方和接收方之间的信号值，还是发送给我的设备的发送方的信号强度？如果是前者，有没有办法弄清楚我的设备的信号强度（不是必要的AP）？

由于

Answer 1

发送者对进行捕获的设备的信号强度。（将发送器的信号强度传递给接收器的唯一方法是在接收器上捕获;这包括＆＃34;远程捕获＆＃34;其中接收器将数据包的副本发送到运行捕获应用程序的计算机。）

TCPDump和Signal

1 个答案: