protect UDP socket before connection the remote server #4

[zhengchun]

If you add DNS server to the VPN, a UDPOutput and UDPInput will not working. #4

private void setupVPN()
{
	if (vpnInterface == null)
	{
		Builder builder = new Builder();
		builder.addAddress(VPN_ADDRESS, 32);
		builder.addRoute(VPN_ROUTE, 0);
		builder.addDnsServer("8.8.8.8");
		vpnInterface = builder.setSession(getString(R.string.app_name)).setConfigureIntent(pendingIntent).establish();
	}
}

just call vpnService.protect() method before a socket connection to remote server.

[hexene]

Merged (8e37ac3), thanks!