Android emulator How to monitor network traffic

Question

How do I monitor network traffic sent and received from my android emulator

User · Answer

A current release of Android Studio did not correctly apply the -tcpdump argument   I was still able to capture a dump by passing the related parameter to qemu as follows   tools emulator -engine classic -tcpdump dump cap -avd myAvd

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You can use  http   docs mitmproxy org en stable install html  Its easy to setup and won t require any extra tweaks   I go through various tool but found it to be really good and easy

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It is now possible to use Wireshark directly to capture Android emulator traffic  There is an extcap plugin called androiddump which makes it possible  You need to have a tcpdump executable in the system image running on the emulator  most current images have it  tested with API 24 and API 27 images  and adbd running as root on the host  just run adb root   In the list of the available interfaces in Wireshark  Qt version only  the deprecated GTK  doesn t have it  or the list shown with tshark -D there should be several Android interfaces allowing to sniff Bluetooth  Logcat  or Wifi traffic  e g    android-wifi-tcpdump-emulator-5554  Android WiFi Android SDK built for x86 emulator-5554

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For OS X you can use Charles  it s simple and easy to use   For more information  please have a look at Android Emulator and Charles Proxy blog post

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You can use Fiddler to monitor http traffic   http   aurir wordpress com 2010 03 22 tutorial-getting-android-emulator-working-with-fiddler-http-proxy-tool   You can also use Fiddler2 here

User · Answer

I would suggest you use Wireshark      Steps          Install Wireshark    Select the network connection that you are using for the calls for eg  select the Wifi if you are using it    There will be many requests and responses  close extra applications    Usually the requests are in green color  once you spot your request  copy the destination address and use the filter on top by   typing ip dst  52 187 182 185 by putting the destination address       You can make use of other filtering techniques mentioned here to get specific traffic

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There are two ways to capture network traffic directly from an Android emulator    Copy and run an ARM-compatible tcpdump binary on the emulator  writing output to the SD card  perhaps  e g  tcpdump -s0 -w  sdcard emulator cap   Run emulator -tcpdump emulator cap -avd my avd to write all the emulator s traffic to a local file on your PC   In both cases you can then analyse the pcap file with tcpdump or Wireshark as normal

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You can start the emulator with the command -avd Adfmf -http-proxy http   SYSTEM IP PORT  I used HTTP Analyzer  but it should work for anything else  More details can be found here  http   stick2code blogspot in 2014 04 intercept-http-requests-sent-from-app html

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You can monitor network traffic from Android Studio  Go to Android Monitor and open Network tab   http   developer android com tools debugging ddms html  UPDATE     Android Device Monitor was deprecated in Android Studio 3 1  See more in https   developer android com studio profile monitor

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It is also possible to use http proxy to monitor http requests from emulator  You can pass -http-proxy flag when starting a new emulator to set proxy  Example burp  to monitor Android traffic  Example usage   emulator -http-proxy localhost 8080 -avd android2 2  Note that in my example I m using Burp  and it is listening port 8080  More info can be found here

User · Answer

Yes  wireshark will work    I don t think there is any easy way to filter out solely emulator traffic  since it is coming from the same src IP    Perhaps the best way would be to set up a very bare VMware environment and only run the emulator in there  at least that way there wouldn t be too much background traffic

[android] Android emulator: How to monitor network traffic?

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