Develop Reference

Can't see WiFi traffic from my mobile in Wireshark?

So, I'm running Ubuntu Linux on my laptop, and Android 4.0.4 on my mobile (I don't think this is relevant, but just in case). I've got my laptop unassociated from any networks, and my mobile is on my network and has been assigned (by DHCP) the IP of 192.168.0.109.
On my laptop, I did this:
ifconfig wlan0 down && airmon-ng start wlan0 && ifconfig wlan0 up .. this created my mon0 interface for promiscuous mode, if I'm not mistaken.
I fired up Wireshark, attached it to mon0 and assigned a display filter of ip.addr == 192.168.0.109, go back to my mobile, and navigate to a few websites. I get absolutely nothing.
The step listed here - unable to read packets captured from wifi network using wireshark - do not help either.
Anyone tell me what I'm doing wrong? :(
Thanks!

Set the WPA or WPA2 key by going to:
Edit » Preferences
Protocols
IEEE 802.11
Enable decryption
Enter the WPA or WPA2 key in Key #1 or the next field, or in more recent versions use the "Edit" button to add a key of type wpa-pwd with a value like myPassword:mySSID.
You might need monitor mode (promiscuous mode might not be sufficient). Also, make sure the device connects after you started monitoring (as Wireshark needs the handshake packets to decrypt).
See also these instructions.

The problem I was having was that the wifi card I was using wasn't giving errors when I switched modes, but it didn't support them none-the-less.
Using another card worked.
Thanks!

Usb tether and debug at the same time

I need network connection on my Android device to test apps. My notebook WiFi adapter is broken, so after 2 hours I've set connection via USB. But! Eclipse doesn't see the device when I start "Wired Tether" on it to get connection and I can't debug my apps.
Does anybody know how to solve this issue? Use USB tethering to get internet connection on phone and debug apps at the same time?

I don't know of a way to simultaneously use USB debugging and tethering. Here are some workarounds, though:
Get a USB wireless adapter for your computer (see http://www.amazon.com/gp/bestsellers/electronics/13983791/ref=pd_zg_hrsr_e_2_4_last). I don't know if buying one of these is an option for you in India.
Send your apk to your phone wirelessly for app installation (see Developing on android-based device via wireless) and then view the logcat directly on the phone for debugging (aLogcat seems to be popular, and allows you to send log files via, for example, email, so that you can open them on your computer to view them on a bigger screen)
I know these solutions involve some cost, effort, or inconvenience, but hopefully one will work for you.
EDIT:
As noted in answers from #shkschneider and #CodeShane, Internet sharing via Bluetooth is possible. CodeShane's answer mentions PdaNet (which apparently also allows for simultaneous USB tethering and debugging), and includes a link. Another solution is OpenGarden. These solutions provide access to the Internet for the computer via the phone. If the reverse is desired (and this is not entirely clear from the question), reverse tethering seems to be the answer (see the answer from #NickL).

Long story short: you can't. Android simply does not supports it (that is more because of the USB standard and tethering action than AOSP's fault).
So to go around the problem, you should either:
Get internet form another source
Maybe you could have ethernet connection?
Tether internet from your phone to your netbook in another way
You can't use wireless tether since your wifi adapter is broken, but maybe you could tether using bluetooth?
Debug your phone in another way
Maybe you could use an android application like aLogCat or similar?
But in the hand, sorry, you can't tether usb from phone to netbook while usb debugging from the netbook. Your success will depend on your ability to find an alternative solution.

I would like to point out that I am using PDANet for USB-tethered internet to type this reply while I am also debugging an android application on the same phone via Eclipse Juno. Not sure which side fixed this, but it is awesome!
As for why Eclipse isn't seeing your device, standard troubleshooting tips apply .. make sure to enable USB debugging and unknown sources/3rd party apps, try restarting, check usb drivers, update drivers/eclipse..
Device not detected in Eclipse when connected with USB cable
http://developer.android.com/tools/device.html
Eclipse not finding phone
PdaNet 3.5
Eclipse Juno Service Release 1; Build id: 20120920-0800

You can use bluetooth tethering to get internet connection and debug using USB.

Step 1. Turn off USB tethering
Step 2. Turn on Wireless USB Debugging
Connect to your device via USB
Enter "adb tcpip 5555"
Unplug your device
Look up your device's IP in the system settings
Enter "adb connect [ip address]:5555"
Step 3. Turn on USB tethering
Now you can use internet via USB cable and debug app in wireless mode
That's it!

Yes, its possible. There's a hack available at below links !
Source: HowToGeek , StackOverFlow

You can actually connect the adb to the phone via TCP. You may need a rooted phone for this to work, though

If I understand your question correctly, you want to tether your phone to the PC via USB, and use the (internet)connection of your PC + still get logcat output?
Then yes, this certainly is possible.Tethering is when your PC uses the internet of your phone, the other way around is called reverse tethering. Your device has to be rooted, then you can use this application for reverse tethering.
When you connect your phone to the computer via USB, you press 'connect' in the application. It then installs an app on your phone, which handles the reverse tethering connection. It works, I sometimes have to press 'check DNS' while it is connecting to make it working.. but it works! Also debugging via USB works the usual way.

First you need to debug your device using USB cable then type adb tcpip 5555 it will allow debugging via TCP/IP protocol.
After that turn on your USB tethering, now your computer get internet connection but lost the USB debugging.
Now you must know your phone IP address so you can debug via TCP/IP. You can use command arp -a in terminal and look at the gateway address.
The last is connect to your phone using adb connect yourphoneip:5555 for example adb connect 192.168.42.129:5555
Now you get debug and tether at the same time

You can use
WiFi Tethering - For Internet connection
Connect USB for adb.

Accessing localhost of PC from USB connected Android mobile device

I have an android device (Samsung galaxy tab) connected to my PC via USB .
I want to use WebServices and run a web page which is located on my local xampp server of my PC on my android device .
I can achieve it if I have both , my PC and android device , connected on the same wireless network .
However is it possible to access the localhost page without any wireless connection , using only USB connection .
(PS : This same scenario works when I run the app on an emulator and use the ip 10.0.2.2 to access the localhost on my PC)

Google posted a solution for this kind of problem here.
The steps:
Connect your Android device and your development machine with USB debugging enabled
Open Chrome in your development machine, open new tab, right click in the new browser tab, click inspect
Click the three dots icon on right top side , -> More Tools, Remote Devices.
Look at bottom of the screen, make sure your device name is appeared on the list with Green colored dot.
Look below at the settings part, check the Port forwarding mark
Add rule. Example, if your python web server is running on your machine localhost:5000 and you want to access it from your device port 3333, you type 3333 on the left part, and type localhost:5000, and click add rule.
Voila, now you can access your web server from your device. Try open new browser tab, and visit http://localhost:3333 from your device

I finally solved this problem. I used Samsung Galaxy S with Froyo. The "port" below is the same port what you use for the emulator (10.0.2.2:port).
What I did:
first connect your real device with the USB cable (make sure you can upload the app on your device)
get the IP address from the device you connect, which starts with 192.168.x.x:port
open the "Network and Sharing Center"
click on the "Local Area Connection" from the device and choose "Details"
copy the "IPv4 address" to your app and replace it like: http://192.168.x.x:port/test.php
upload your app (again) to your real device
go to properties and turn "USB tethering" on
run your application on the device
It should now work.

I've read numerous forums and tried play apps but not found a solution until now.
My scenario I believe is similar to yours, but I will clarify to help others. I have a locally hosted website and web services to be used by my android application. I need to have this working on the road for demonstration with only my laptop and no network connection.
Note: Using my iPhone as a wifi hotspot and connecting both my pc and my android device worked, but the iPhone 4S connection is slow and dropped out regularly.
My solution is as follows:
Unplug network cables on PC and turn off wifi.
Turn off wifi on android device
Connect android to pc via USB
Turn on "USB Tethering" in the android menu. (Under networks->more...->Tethering and portable hotspot")
Get the IP of your computer that has been assigned by the USB tether cable. (open command prompt and type "ipconfig" then look for the IP that the USB network adapter has assigned)
Open a browser on the PC using the IP address found instead of localhost to test. i.e. http://192.168.1.1/myWebSite
Open a browser on the android and test it works

I did this on a windows computer and it worked perfectly!
Turn on USB Tethering in your mobile.
Type ipconfig in the command prompt in your computer and find the ipv4 for "ethernet adapter local area connection x" (mostly the first one)
Now go to your mobile browser, type that ipv4 with the port number of your web application. eg:- 192.168.40.142:1342
It worked with those simple steps!

Here is a piece of my Android app's code:
This app is able to communicate with a HTTP get-post model between a servlet running on a server and an Android device plugged in USB-Debuggable mode (because the app was in developing progress).
I also can run the app over Wi-Fi when the server, Tomcat Apache 7, running on (when the app development was finished).
To get the IP address of yours
Go to Command Prompt
Type ipconfig
Hit enter
In the list, IPv4 Address is your IP.

Make sure you have adb installed on the computer, USB debugging enabled on the phone, and the phone has allowed access to the computer. Plug the phone into the computer via USB cable, and make sure it's visible (it should show up in the Bash command adb devices.
In your computer's Chrome browser, open chrome://inspect/#devices, click the "Port forwarding" button, check "Enable port forwarding", and add the port on the computer that you want to be accessible from the phone (detailed instructions here). You'll need to keep open the tab running chrome://inspect/#devices.
In your phone's browser, navigate to localhost:[port_number], and it should display whatever is running on the computer.
This works on Windows and Ubuntu Linux, and should work on Mac as well.

How to Easily access LocalHost in Actual Android Device -> Connect your pc with the android device via USB
Go to Chrome inspection click 'f12' or Control+Shift+C
Chrome Inspection tool
Check the bottom of the chrome inspection tool.
Now go to settings in Remote Device Tab.
Remote Devices Tab
check on "Discover USB Device" option as well as check on "Port Forwarding" option.
Now Click on Add Rules, Enter Any Device Port e.g(4880) and in Local Address Enter the Actual Address of the local host in my case e.g (127.0.0.1:480)
After Adding the Rule go to your android studio -> inside your code URL(http://127.0.0.1:4880). Remember to change the port from 480 -> 4880.
Go to Remote Device Tab in Chrome and Click on your connected Device. Add New URL(127.0.0.1:4880)
Inspect the Android Device Chrome Browser
Check your Actual Device Chrome Browser and start Debugging the code on Actual Android device.

Check for the USB connection type options. You should have one called "Internet pass through". That will let your phone use the same connection as your PC.

I very much liked John's answer, but I'd like to give it with some changes to those that want to test some client//server configuration by running a client TCP on the USB connected Mobile and a server on the local PC.
First it's quite obvious that the 10.0.2.2 won't work because this is a REAL hardware mobile and not a simulator.
So Follow John's instructions:
Unplug all network cables on PC and turn off wifi.
Turn off wifi on the android device
Connect android device to pc via USB
Turn on the "USB Tethering" (USB Modem/ USB Cellular Modem / USB שימוש כמודם סלולרי) in the android menu. (Under networks->more...->Tethering and portable hotspot")
This USB connection will act as a DHCP server for you single PC connection, so it'll assign your PC a dedicated (dynamic) IP in its local USB network. Now all you have to do is tell the client application this IP and port.
Get the IP of your PC (that has been assigned by the USB tether cable.)
(open command prompt and type "ipconfig" then look for
the IP that the USB network adapter has assigned, in Linux its ifconfig or Ubuntu's "Connection information" etc..)
Tell the application to connect to that IP (i.e. 192.168.42.87) with something like (Java - client side):
String serverIP = "192.168.42.87";
int serverPort = 5544;
InetAddress serverAddress = InetAddress.getByName(serverIP);
Socket socket = new Socket(serverAddress, serverPort);
...
Enjoy..

Hello you can access your xampp localhost by
Control panel -->
windows defender firewall -->
Advance setting (on left side) --> Inbound Rules --> New Rule --> Port --> in specific local port write your Apache ports --> next --> next
then you can access your localhost by using local PC IP address:

Zsivics Sanel's answer above work fine for USB Debugging but if you want to access your localhost on device for Wifi ADB you can use command
adb reverse tcp:port tcp:port
and use the link http://localhost:port/ on your android to access the http://localhost:port/ of your pc.
This works for USB Debugging as well :)
The detailed answer with explaination is here.

Connecting android phone via USB cable and accessing http server on the Computer.
Firewall - switch it off, once everything works you can add a rule
under Inbound rules, enable Apache HTTP Server (UDP and TCP) (or whatever HTTP server you're using) Warning - if you switch off the firewall, your computer becomes vulnerable to internet attacks. So switch off internet and disconnect from network first. You don't need to be on the Internet for this to work, as you're connecting two devices on local network.
Plug in the USB cable. If networking window pops up, select Home Network. If it doesn't pop up it's probably set to Public (which won't work), so go to: Control Panel\Network and Internet\Network and Sharing Center (in win7) and set it to Home Network there. It might give you a next screen after you press it to share Pictures, Music... just click cancel on it. On the main screen Home Network will still be active.
You need the Computer's IP, localhost or other aliases don't work. To get the IP of your machine, start the Windows command line shell (press Windows Key + R and type cmd), the black command prompt window should pop up, type: "ipconfig" and hit enter. Now look for
IPv4 Address. . . . . . . . . . . : 192.168.###.###
That's the IP that your phone assigned to your computer
Now you should be done, in the phone's browser, try accessing a test html file from your computer's server it should display fine.
Now that everything is working you'll probably want to enable the firewall and Internet access on your computer. Now try accessing your http server again. It probably won't work. Depending on your setup you might get a popup asking you to add a rule to allow it, but if you don't, just add it yourself. Start the windows firewall and go to Inbound Rules (because it's a server) and add New Rule. Select "Program". Locate the exe of your http server, and in the next screen make sure Allow is selected. Try connecting again, and now it should work. If not it's probably because you selected wrong exe. You can even go more advanced to restrict outside usage (because now everyone on the internet can access it if they have your Internet IP address) To restrict access you can right-click on the new rule you've just created, click Properties, and go to Scope tab and change things there accordingly.
Note for Android developers, now in your android code, you have to use "http://", otherwise it won't work. For example: MyAsyncTask.execute("http://192.168.123.123/test.html")
Part II -- Setting IP to fixed/static.
Now that things work, every time you unplug the cable and plug it back in, your IP will change. And if you are using it somewhere like inside a code, you'll have to update it every time! Solution I've come up with is to set the IP to static.
Having the phone connected and tethered, go back to Network and Sharing Center and click on the Local Area connection "Connections:"
On the next screen select Properties, then highlight IP 4 and press properties there and click "Use the following IP address"
Put Default Gateway and Subnet Mask exactly as it was in the ipconfig, and for the IP Address, only change the last 3 digits to anything from 1 to 255
That IP will be your new fixed/static IP and it will remain the same next time you plug the phone.

Problem I faced maybe it will help some one, I was working long time where my pc and android device connected to the same WiFi network and the android device connected via the IPV4 address of the pc with opened port 8080 trought the fire wall.
ONE DAY :
I installed Genymotion emulator in order to debug UI on different screens.
THANKS to Genymotion/Virtualbox network configurations it ruined my WiFi adapter.
The fix was to reconfigure IPV4/TCP settings on the WiFi netwrok adapter :

ADB, Wifi and Eclipse: how I can configure?

Recently I see that is possible to debug app development by use WIFI instead of USB debug method. I make a search and I found an app called abdWireless but I have a problem.
How I can tell to Eclipse to connect via Wifi method?
I think that it is an automatic process, but on start debug it open the Emulator.
Someone? :)
Bye

First, run 'adb connect ip:port', like adb connect <phone-ip-address>, from console/terminal (with your IP address and port of cause). This makes adb service to connect to your device via network.
Port 5555 is used by default if no port number is specified.
Then check that device is correctly connected: run adb devices from console/terminal (make sure you remove usb cable from device). If adb devices does not list your device, then you have some entirely different issue.
If you've connected your device via adb and you can see the device in adb devices list, but your eclipse still starts emulator,:
Go to Run->Debug Configuration -> [your configuration]
In your configuration go to Target tab and select Manual
This will popup device selection each time you start the app from eclipse. So you will be able to explicitly state which emulator/device to use.
To disconnect your device, adb disconnect <phone-ip-address>

This process can be automated from within Eclipse with Adb Connect:
http://ppareit.github.com/AdbConnect/

I'll try to explain how I connected eclipse with my android device with adb thru wifi on my win7 x32, sharing my internet connection at the same time.
I'm using two methods.
The first one is when my computer is connected the internet (ie. thru ethernet cable), and I'm sharing this connection with my android device thru wifi (like a hotspot).
The second one I use when my computer isn't connected directly to the internet, yet I'm using my device's internet to connect my computer to the internet.
Computer connected to the internet, android device connected to the internet thru my computer.
Note that for this to work, your wireless card must meet certain requirements, as this won't work with all wireless cards.
Well first of all, you need to share your internet connection from your computer. To do that open cmd (command prompt) with administrative privileges (press the win logo, type cmd, and then press ctrl+shift+enter). To set up the "hotspot", type:
netsh
wlan
set hostednetwork mode=allow ssid=Hotspot key=D2D46784ECB32 keyUsage=persistent
start hostednetwork
Change "Hotspot" to whatever you want your ssid to be called. Change "D2D46784ECB32" to whatever you want your key (WPA2) to be.
Now, go to Control Panel\Network and Internet\Network Connections. You'll probably notice a new "adapter" called "Wireless Network Connection 2". Right click on the ethernet connection (or whatever device you use to connect to the internet). Click on properties. Click on sharing. Check the "Allow other network users to connect through this computer's Internet connection". Select the Wireless Network Connection 2. Click OK. What you just did was to start Internet Connection Sharing (ICS).
The next step is to connect your device to the connection you've just created. On your Android device, search the wifi connection, which you'll find by the ssid you've set (ie. Hotspot), and enter the key you've set (ie. D2D46784ECB32). Once the connection has been established, you'll have Internet access.
Please note that sometimes I have trouble with this connection. Sometimes my device is unable to connect (I think that there is a bug in win7). I usually fix this by going to my computers connections, and on my ethernet connection I go to properties → sharing, uncheck the "Allow other...". Click OK. Then again go to that connection's properties → sharing and check the "Allow other…". Basically I've reset the ICS. And now I'm usually able to connect.
Please also note that once you've restarted your computer, I'll most probably have to restart the hostednetwork and reset the ICS.
To stop the hotspot, type:
stop hostednetwork
To start the hotspot, type:
start hostednetwork
Note that you don't have to set the hostednetwork again, just start it. Please also note that you must be in the netsh - wlan mode, (type netsh and then wlan, as before), and the cmd must have been started with the administrative privileges.
Now, if you haven't already done it, turn on your developer options in your android device and turn on ADB over network. After that you'll most likely see an ip address, suffixed by
:5555
ie.:
192.168.137.158:5555
On your computer, open cmd, go to your adt/sdk/platform-tools folder. On my computer it's like this:
cd "C:\Program Files\adt-bundle-windows-x86\sdk\platform-tools"
And type the following:
adb connect 192.168.137.158
You should replace the ip address with the one that was shown in your android device in the developer options. (I didn't need to add the :5555 suffix/port, but you may need to do it).
To check whether the connection was successful, type:
adb devices
(Btw, i'd like to thank inazaruk for his help with this).
Now, you should be able to connect eclipse with your android device thru wifi, as others have explained (run configuration → target → manual).
Computer not connected to the internet. You are using the internet connection of your android device to connect the computer to the internet.
On your Android device, go to Settings → More → Tethering and portable hotspot → Set up wi-fi hotspot. Change the SSID, the key and the security as you please.
Go back one step and turn on Portable Wi-fi Hotspot.
On your computer, connect to your android device via wifi as you'd do with any other wi-fi connection, with the ssid and key that you've set.
Once you've connected, go to Control Panel\Network and Internet\Network Connections, right-click on the wireless connection you've just connected to. Select Status and then Details. Find the IPv4 address of your computer (at least I'm using IPv4, you might use IPv6).
That address might be like this:
192.124.159.52
The default gateway should then be like this:
192.124.159.1
On your computer, open cmd, go to your adt/sdk/platform-tools folder. On my computer it's like this:
cd "C:\Program Files\adt-bundle-windows-x86\sdk\platform-tools"
And type the following:
adb connect 192.124.159.1
You should replace the ip address with the one that was shown default gateway (I didn't need to add the :5555 suffix/port, but you may need to do it).
To check whether the connection was successful, type:
adb devices
(Btw, i'd like to thank inazaruk again for this).
Now, you should be able to connect eclipse with your android device thru wifi, as others have explained (run configuration → target → manual).
Computer and android device connected to the internet via the same wifi modem.
I must admit that I haven't tried this option, but I'm guessing that it's similar as the two methods before. Find the IP address of the android device in the developer options (you should be able to see it when you enable ADB over network). And then on your computer, as before:
open cmd, go to your adt/sdk/platform-tools folder. On my computer it's like this:
cd "C:\Program Files\adt-bundle-windows-x86\sdk\platform-tools"
And type the following:
adb connect <ip_address_of_your_android_device>
.
To check whether the connection was successful, type:
adb devices
Now, you should be able to connect eclipse with your android device thru wifi, as others have explained (run configuration → target → manual).
Now, I know that this isn't exactly the answer to the question. But I did find it very hard to share my internet connection, and then to use the wifi with eclipse to develop apps. After some time, I managed to connect like I've described. So, if I've helped someone to do the same, I'd be very happy :-)

Connecting to an Android emulator on another machine

I need to test my android app 24h a day and I have 3 ubuntu boxes to do it.
I would like to connect my development system (MOTODEV Studio 1.3) to a Remote Device.
The interface asks me for an IP address and port for the machine to connect to.
But it doesn't connect. I found that the adb sever on the remote machine doesn't seem to listen to external ports, only internal loopback, making machine-to-machine connections impossible.
Is this true? If so, why there is a section on Device to connect to Android Remote Device on MOTODEV Studio?
I've found an explanation and a workaround in this post (http://rxwen.blogspot.com/2009/11/adb-for-remote-connections.html) but it seems complicated and the post's links don't work, so I'm confused whether there is a solution to do that.
It seems so simple..... I can't believe there is not a way.

The Remote device feature of MOTODEV Studio is intended for TCP/IP connections to a remote phone. It requires a lot of manual intervention at this point to get things working and it's an area where we're definitely in need of better documentation.
I don't have the full workflow in front of me, but the steps you need go like this...
Connect phone to remote host.
Using adb shell on remote host, set the phone to connect over TCP/IP rather than USB. You'll need to find the IP address of the phone manually. If you're using a Motorola phone and the Motorola drivers, it's probably 192.168.16.x
Set up port forwarding from the remote host to the phone for the debug ports (probably 5554 or 5555).
From the local host, set up the address of the remote host in the IP field.
When choosing "Run as" or "Debug As" from the local host, you need to choose the remote device as your target.
We intend to make this workflow more automated in the future, but for now you have to do this manually. It's my observation that remote debugging of embedded systems is still slow and prone to problems with latency and line quality, regardless of whether we're talking about phones or reference boards.
Good luck.