Posts Tagged ‘VPN’
Sniffing 3G Data
April 26, 2012
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I always assumed there was some sneaky way to watch the network traffic from my iPhone over a 3G network but I never gave it a shot until today. As it turns out, it’s pretty easy.
I used a VPN connection to make this work. I don’t know of a way to setup a proxy just for your 3G connection but if there is a way then any computer with a public IP Address would work.
I used Fiddler to watch the traffic but any network monitor will work. Here’s a good tutorial on setting up Fiddler. IMPORTANT: You only need to do steps 1 and 2 in this tutorial and then make sure to RESTART FIDDLER!
- Connect your iPhone to a VPN (iOS: Setting up VPN)
- On your iPhone, go to Settings | General | Network | VPN and click the blue arrow next to the VPN connection you are using.
- Now you should be on a screen titled “Add Configuration”. Scroll to the bottom and in the “Proxy” section select “Manual”.
- For the Server, enter the IP Address of the computer you wish to send the data through (ie. 10.2.1.100).
- For the Port, use 8888 (assuming you’ve done the Fiddler tutorial listed above)
- Authentication, in my case, is set to Off.
- Save those settings and open Safari or any app and start sniffing!
Categories: iPhone
Fiddler, iphone, network traffic, VPN