How to configure a new network interface in Android

Question

I am trying to configure a new network interface on Android tablet (v3.2). From terminal application I can "ifconfig eth0 192.168.11.14 netmask 255.255.255.0 up" and everything works fine (ethernet cable is connected trough USB-Ethernet dongle)

I want to make this configuration persistent, but it looks like there is no 'interfaces' file in Android. Where is network configuration file located? Do I need to create new one? Where?

Thanks,

Answer 1

yet another late answer... scoured the internet and couldn't find any decent answer until I checked out /etc/init.sh ...

I'm using an Android Oreo vmware image for testing purposes and here are the steps that I used to add static IP to Android on boot:

1. Open Terminal Emulator (if not present install from Play Store)
2. type su
3. type vi /etc/init.sh
4. type i
5. look for function do_init()
6. before the closing curly brace (}), type post_init_network

7. create new line after the closing curly brace (}), type

   function post_init_network() { ifconfig 192.168.63.122/24 up
}

   change the ip and subnet as needed...

8. press :wq! to save and exit vi

9. power of and power on Android.
10. To check Static IP: open Terminal Emulator again after power on, type su, then type ifconfig

NOTE: I encounter this issue where I can't get an IP from NAT network using 2 interfaces where the first interface is set to static IP and the other DHCP, just power on and power off Android until you can get an internet connection.