Set Android IP,DNS,GATEWAY setting programmatically
You can change system settings programatically.
First you need to request the 'WRITE_SETTINGS' permission in your 'AndroidManifest.xml':
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
Then you need to actually change the setting using the following code:
android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_USE_STATIC_IP, "0"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_DNS1, "192.168.0.2"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_DNS2, "192.168.0.3"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_GATEWAY, "192.168.0.1"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_NETMASK, "255.255.255.0"); android.provider.Settings.System.putString(getContentResolver(), android.provider.Settings.System.WIFI_STATIC_IP, "1");
The current settings can be accessed via the same method but use 'getString' instead of 'putString'.
For information about the settings option visit the reference here:Settings.System | Android Developers
Not sure it will help but it's possible to manually set an alternative ip,gateway, dns etc for a particular access point in the Wireless settings. Whether you can do this automatically or using an intent is another question?
I just saw this which might be helpful
How can i call Wi-Fi settings screen from my application using Android