The App should comunicate with a Server and should send data and I want to check if the conection is working.THANKS edit retag flag offensive close merge delete add a comment 3 Answers.This would be item 3, but wireless can be annoying to deal with - hard to capture, missing data, encryption, etc.
Android side - if it is easy to use those apps, or if you dont have control of the server, or the network to grab traffic, then this option becomes attractive. Wireshark For Android Install At TheWireshark is a sniffer; install at the server side, on the PC hosting the server application. Wireshark For Android Android Phone InYoud need to type ip.srcxxx.xx.x.x your ip address of your android phone in filters pane of wireshark. I had a similar problem that inspired me to develop an app that could help to capture traffic from an Android device. As my app uses an OS feature called VPNService to capture traffic, it does not require the root access. Captured packets are sent to a PC using the Wireshark SSH Remote capture feature. If you have any issuessuggestions, do not hesitate to let me know. This was important because if it didnt, it meant it was sending medical information over plaintext. There are a few other things that can go wrong, they can for instance not validate the certificate provided over TLS, effectively allowing MITM attacks to succeed, but thats a different story altogether, so I wont go there for now. So make sure you get your Wireshark installed, and make sure you never run it as root for your own safety. This uses the extcap interface to fetch the packets to display from a remote source. I like this idea among other things because it splits the displayingparsing from the capturing. As Ill show later, this is not the only useful tool using the interface. Googling for a good half hour didnt bring me anywhere, I even started strace ing the process (to the point that Wireshark crashed in a few situations) until I finally managed to figure out the right -incantation- invokation of the androiddump tool that had no more information even in verbose mode, but at least it told me what it was trying to do. ![]() No error message and not even a help output to figure out if you need to enable somethihng. I have not dug into the phone much more because I was already kind of tired of having to figure out pieces of the puzzle that are not obvious at all, so I looked for alternative approaches. But this is not easy particularly on a laptop with already-oversubscribed USB ports. Googling around would suggest setting up a tee: tell iptables to forward a copy of every single packet coming from or to the phone to another mac address. This is relativel expensive, and no reliable over WiFi networks anyway, beside increasing congestion on an already busy network. In Gentoo these require the sshdump and libssh USE flags enabled. With this interface, Wireshark effectively opens a session via SSH to the router, and runs tcpdump on it. It can also use dumpcap or tshark, which are Wireshark-specific tools, and would be significantly more performant, but there is no build for them on OpenWRT so that does not help either. I ended up going for this option, and the good thing with this is that if you know the hardware addresses of your devices, you can now very easily sniff any of the connected clients just by filtering on that particular address, which opens for interesting discoveries. Wireshark For Android Full Manual TrafficNot as good as full manual traffic inspection, but such a setup will help you quickly identify which devices send unencrypted traffic and is where its going. This means that if you click through and make a purchase, Diego Elio Petten will earn a commission, at no additional cost to you. ![]()
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