Question: I installed a FreeBSD 10.0 server(IP:10.1.2.3), and want to send packets to remote clients, with fake source ip, such as:

```
socket_sendto($socket $data, $length, 0, $ip, $port)

```

$data contains IP header, where i specify my "fake ip" here.

The questions is:

1. if i specify the IP to C class, everything goes well(below success):

```
10.1.2.4
10.1.3.5

```
2. if i specify the IP to B or A class, nothing send to destination(below failed):

```
10.2.1.2
11.1.2.3

```

So, how can i resolve the issue? 

Btw i already modified sysctl.conf to :

```
  net.inet.ip.forwarding=1
  net.inet6.ip6.forwarding=1
  net.inet.ip.fastforwarding=1

```

Sorry for poor English.

Answer: 
During the build process, your Android projects are compiled and packaged into an .apk file, the container for your application binary. It contains all of the information necessary to run your application on a device or emulator, such as compiled .dex files (.class files converted to Dalvik byte code), a binary version of the AndroidManifest.xml file, compiled resources (resources.arsc) and uncompiled resource files for your application.
I can't figure out why you need to add the folder to apk, well if you are asking about adding it in the project and later to be accessed in the apk then yes you can place it inside the "assets" folder of your project