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Network.HavePublicAddress

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public static method HavePublicAddress(): bool;
public static bool HavePublicAddress();

Description

Check if this machine has a public IP address.

It checks all the network interfaces for IPv4 public addresses and returns true if one address is found.

    function OnGUI() {
        if (GUILayout.Button ("Start Server")) {
            // Use NAT punchthrough if no public IP present
            var useNat = !Network.HavePublicAddress();
            Network.InitializeServer(32, 25002, useNat);
            MasterServer.RegisterHost("MyUniqueGameType",
                "JohnDoes game", "l33t game for all");
        }
    }
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void OnGUI() { if (GUILayout.Button("Start Server")) { bool useNat = !Network.HavePublicAddress(); Network.InitializeServer(32, 25002, useNat); MasterServer.RegisterHost("MyUniqueGameType", "JohnDoes game", "l33t game for all"); } } }

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