How to use iptables in an Android application

Question

How can I use iptables in an Android application? I need this for a firewall-like functionality i.e. packet filtering, blocking sites etc.

I\'m also not sure whether

Answer 1

It's definitely possible. You might consider looking at the source code of Droidwall.

DroidWall - Android Firewall is a front-end application for the powerful iptables Linux firewall. It allows you to restrict which applications are permitted to access your data networks (2G/3G and/or Wi-Fi).

Check out the iptables API from Droidwall for specific examples.

Note that when using iptables you need root access to your phone.