Windows phone 8 - IP address is of wifi or carrier - windows-phone-8

Question

I am developing an application on windows phone 8, and would like to know - Is it possible to check whether retrieved device IP address is over Wifi or carrier?
Code used to find device IP address is -
public IPAddress IdentifyDeviceIp()
{
List<string> DeviceIPAddresses = new List<string>();
var DeviceHostnames = Windows.Networking.Connectivity.NetworkInformation.GetHostNames();
foreach (var DeviceHostName in DeviceHostnames)
{
if (DeviceHostName.IPInformation != null)
{
string DeviceIpAddress = DeviceHostName.DisplayName;
// Emulator: ignore IPV6 addresses
if (DeviceIpAddress.Contains(":"))
continue;
DeviceIPAddresses.Add(DeviceIpAddress);
}
}
if (DeviceIPAddresses.Count == 0)
{
MessageBox.Show("No IP address found!!");
return new IPAddress(0);
}
return IPAddress.Parse(DeviceIPAddresses[0]);
}

Answer 1

To determine what a network is currently used by a phone you can check NetworkInterfaceType. Mode details here http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh487166(v=vs.105).aspx.

Answer 2

you can use this code for determinate where is the type of Network Interface :
NetworkInterfaceType MyNetworkInterfaceType = Microsoft.Phone.Net.NetworkInformation.NetworkInterface.NetworkInterfaceType;
If you've on Wifi, this code return "Wireless80211", you can read all documentation here
Also, with Windows Phone, you can Set your prefer NetworkInterface ( If you hove connected on Wifi and, on 3G, you can create a request with the Cellular connection (2G/3G/4G) or with NonCellular connection ( Ethernet, Wifi...) you can read this for information
You can Set your prefer Network for SocketRequest and for WebRequest you can read documentation about that in the msdn :
Microsoft.Phone.Net.NetworkInformation.WebRequestExtensions
Microsoft.Phone.Net.NetworkInformation.SocketExtensions
Use just the function
SetNetworkPreference(Socket/WebRequest, NetworkSelectionCharacteristics)
for define a request with your prefer network.
For better Experience for your application user, prefer the NonCellular DataConnection, generaly, it's faster [except for 4G] and cheaper... :D
For Your Problem, If you Set your prefer Connection, and you send a request, the ip adress use for this request must match the network defined preference.