In the example below you will see that the mail server was missing user name and password.Click on any line with the SMTP Protocol and choose Follow TCP Stream.Or the settings of the mail server and/or within the Acronis software were wrong:.Either the wrong SMTP server name was specified (look for DNS in the Protocol column).Or if you just want to check why an Acronis product cannot send E-mail notifications (unencrypted on standard ports): You can choose a file in the Output tab and set traffic and time limits for logs collection: In case you know that backup will not fail immediately, it means WireShark should be executed during some extended time (20 minutes +) it is a good idea to write the information to a file right after start.
If you want to monitor connection through a particular port only, you can set it up too: in Capture Filter type the port you want to monitor, e.g.
, select corresponding network adapter you are using for your network connection and click the Start button:
Note the IP of the source and target device. If you are not planning on keeping Wireshark installed on your system, then it is recommended to download and run the portable version. Collecting network tracing logs in Windows/Linux/macOSĭownload the free Wireshark utility from. PCAP remote can be used to collect logs on an Android device. These logs can be obtained and viewed by Wireshark software. But other than that there’s nothing else, it just worked out of the box for my CyanogenMod based S5 and a few other devices and Android versions I tried.Network tracing logs are useful to troubleshoot issues related to network connectivity. Obviously adb has to be installed on the PC for this to work in addition to Wireshark. Recently, however, a more real time approach was required and I was actually quite surprised how easy it is to set this up once tcpdump is on the device.Īctually it’s a single command on Linux very similar to using ssh to pipe back tcpdump data from a remote Linux box (note: the final ‘-‘ character is important!): adb exec-out "tcpdump -i any -U -w - 2>/dev/null" | wireshark -k -S -i. I didn’t really follow up on this since then because most dumping data into a file on the device and later transferring it to the PC was good enough for me. I’ve known for a while that it’s also possible to use adb and tcpdump to pipe all network traffic from the smartphone over USB to Wireshark running on a PC for real time tracing. 
Back in 2014 I had a post on how to cross compile tcpdump for Android to record all network traffic from cellular and Wifi into files for later analysis for Wireshark.
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