How to get IP address of device in Unity 2018+?

Question

How to get IP address on C# in program which developing for android device in Unity 2018.2+?

Seems like Network.player.ipAddress is deprecated right now, so I'm looking for a new way.

Answer 1

The Network.player.ipAddress has been deprecated since it is based on the old obsolete Unity networking system.

If you are using Unity's new uNet Network System, you can use NetworkManager.networkAddress;

string IP = NetworkManager.singleton.networkAddress;

---

If you are using raw networking protocol and APIs like TCP/UDP, you have to use the NetworkInterface API to find the IP Address. I use IPManager which has been working for me on both desktop and mobile devices:

IPv4:

string ipv4 = IPManager.GetIP(ADDRESSFAM.IPv4);

IPv6:

string ipv6 = IPManager.GetIP(ADDRESSFAM.IPv6);

The IPManager class:

using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;

public class IPManager
{
    public static string GetIP(ADDRESSFAM Addfam)
    {
        //Return null if ADDRESSFAM is Ipv6 but Os does not support it
        if (Addfam == ADDRESSFAM.IPv6 && !Socket.OSSupportsIPv6)
        {
            return null;
        }

        string output = "";

        foreach (NetworkInterface item in NetworkInterface.GetAllNetworkInterfaces())
        {
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN
            NetworkInterfaceType _type1 = NetworkInterfaceType.Wireless80211;
            NetworkInterfaceType _type2 = NetworkInterfaceType.Ethernet;

            if ((item.NetworkInterfaceType == _type1 || item.NetworkInterfaceType == _type2) && item.OperationalStatus == OperationalStatus.Up)
#endif 
            {
                foreach (UnicastIPAddressInformation ip in item.GetIPProperties().UnicastAddresses)
                {
                    //IPv4
                    if (Addfam == ADDRESSFAM.IPv4)
                    {
                        if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
                        {
                            output = ip.Address.ToString();
                        }
                    }

                    //IPv6
                    else if (Addfam == ADDRESSFAM.IPv6)
                    {
                        if (ip.Address.AddressFamily == AddressFamily.InterNetworkV6)
                        {
                            output = ip.Address.ToString();
                        }
                    }
                }
            }
        }
        return output;
    }
}

public enum ADDRESSFAM
{
    IPv4, IPv6
}