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Error in tcpdump retrieving CSI packets

Open yjxb1 opened this issue 1 year ago • 4 comments

Using the operating procedures of the laboratory I used the ifconfig command to find the wlan0 MAC address, and also used iwconfig to find a MAC address. I don't know which address to use to replace the address in the tutorial. BTJ LKD ~HVD_EC6EBB2_@M X~3WQEZLDY4 XBCJ~F$DNZD

Then I tried both MAC addresses again and chose channel 36, but the results were not satisfactory. Can you guys solve it (SMX@21{}}ZSS(XHMS )LYC

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yjxb1 avatar Aug 01 '23 07:08 yjxb1

Did you solve the problem? I can't make sure which one is my MAC address. After execute tcpdump -i wlan0 dst port 5500, I can't catch any CSI packet. The result is got 0.

sarielkk avatar Aug 17 '23 01:08 sarielkk

I recommend deactivate or delete wpa_supplicant. Mac address filtering is not mandatory option. If you want to use that option, the mac address must be in channel and bandwidth used in -c option. Ex) There is the device that address is aa:bb:cc:dd:ee:ff in 36 channel and 20MHz bandwidth. You can generate base64 parameter like this. makecsiparams -N 1 -C 1 -c 36/20 -m aa:bb:cc:dd:ee:ff You can use android app like wifi analyzer to get mac addresseses in specific channel and bandwidth.

sangeun-jo avatar Aug 22 '23 23:08 sangeun-jo

你解决了问题吗?我无法确定哪一个是我的MAC地址。执行 tcpdump -i wlan0 dst 端口 5500 后,我无法捕获任何 CSI 数据包。结果为 0

You can use the iwconfig command to view the MAC address。Just like the first picture in my question。

yjxb1 avatar Aug 23 '23 10:08 yjxb1

我建议停用或删除wpa_supplicant。 Mac 地址过滤不是强制性选项。如果要使用该选项,则 mac 地址必须位于通道中,并且带宽在 -c 选项中使用。例如)有地址为aa:bb:cc:dd:ee:ff的设备,在36通道和20MHz带宽中。您可以像这样生成 base64 参数。 您可以使用像wifi分析仪这样的安卓应用程序来获取特定频道和带宽中的MAC地址。makecsiparams -N 1 -C 1 -c 36/20 -m aa:bb:cc:dd:ee:ff

Ok thanks。

yjxb1 avatar Aug 23 '23 10:08 yjxb1