1. 手機要有root許可權

2. 下載tcpdump   http://www.strazzere.com/android/tcpdump

3. adb push c:\wherever_you_put\tcpdump /data/local/tcpdump

4. adb shell chmod 6755 /data/local/tcpdump

5, adb shell,   su獲得root許可權

6， cd /data/local

7， ./tcpdump -i any -p -s 0 -w /sdcard/capture.pcap

命令引數：

        # "-i any": listen on any network interface

　　# "-p": disable promiscuous mode (doesn't work anyway)

　　# "-s 0": capture the entire packet

　　# "-w": write packets to a file (rather than printing to stdout)

　　... do whatever you want to capture, then ^C to stop it ...

8,  adb pull /sdcard/capture.pcap d:/

9,  在電腦上用wireshark開啟capture.pcap即可分析log

Execute the following if you would like to watch packets go by rather than capturing them to a file (-n skips DNS lookups. -s 0 captures the entire packet rather than just the header):

adb shell tcpdump -n -s 0

Typical tcpdump options apply. For example, if you want to see HTTP traffic:

只監聽http 

adb shell tcpdump -X -n -s 0 port 80

根據以上的資訊，寫一個bat去執行（tcpdump檔案必須在當前目錄裡）。

開始tcpdump

adb push tcpdump /data/local/tcpdump adb shell chmod 6755 /data/local/tcpdump adb shell rm -r /sdcard/capture.pcap adb shell  /data/local/tcpdump -i any -p -s 0 -w /sdcard/capture.pcap pause

下載tcpdump檔案到電腦

adb pull /sdcard/capture.pcap capture.pcap

問題：有些機器root後通過adb shell 後，預設不是root使用者，需要輸入 su才能切換到root，這樣在執行批處理會有問題，解決方法如下

adb shell "su -c 'sleep 1'" adb start-server

adb push tcpdump /data/local/tcpdump

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