Support for the widest array of network configurations. Auto-configure as best we can.

src/engine/gameManager/ConfigManager.java

@@ -25,7 +25,7 @@ import java.util.regex.Pattern;
 public enum ConfigManager {
 
     MB_BIND_ADDR,
-
+    MB_EXTERNAL_ADDR,
     // Database connection config
 
     MB_DATABASE_ADDRESS,

src/engine/net/client/msg/login/GameServerIPResponseMsg.java

@@ -36,7 +36,7 @@ public class GameServerIPResponseMsg extends ClientNetMsg {
      */
     public GameServerIPResponseMsg() {
         super(Protocol.GAMESERVERIPRESPONSE);
-        this.ip = ConfigManager.MB_BIND_ADDR.getValue();
+        this.ip = ConfigManager.MB_EXTERNAL_ADDR.getValue();
         this.port = Integer.parseInt(ConfigManager.MB_WORLD_PORT.getValue());
     }
 

src/engine/server/login/LoginServer.java

@@ -34,6 +34,7 @@ import org.pmw.tinylog.writers.RollingFileWriter;
 import java.io.*;
 import java.net.DatagramSocket;
 import java.net.InetAddress;
+import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.sql.Connection;
@@ -335,6 +336,18 @@ public class LoginServer {
             String name = ConfigManager.MB_WORLD_NAME.getValue();
 
 
+            if (ConfigManager.MB_EXTERNAL_ADDR.getValue().equals("0.0.0.0")) {
+
+                // Autoconfigure External address for use in worldserver response
+
+                Logger.info("AUTOCONFIG EXTERNAL IP ADDRESS");
+                URL whatismyip = new URL("http://checkip.amazonaws.com");
+
+                BufferedReader in = new BufferedReader(new InputStreamReader(
+                        whatismyip.openStream()));
+                ConfigManager.MB_EXTERNAL_ADDR.setValue(in.readLine());
+            }
+
             if (ConfigManager.MB_BIND_ADDR.getValue().equals("0.0.0.0")) {
 
                 try (final DatagramSocket socket = new DatagramSocket()) {
@@ -344,6 +357,9 @@ public class LoginServer {
 
             }
 
+            Logger.info("External address: " + ConfigManager.MB_EXTERNAL_ADDR.getValue() + ":" + ConfigManager.MB_WORLD_PORT.getValue());
+            Logger.info("Internal address: " + ConfigManager.MB_BIND_ADDR.getValue() + ":" + ConfigManager.MB_LOGIN_PORT.getValue());
+
             InetAddress addy = InetAddress.getByName(ConfigManager.MB_BIND_ADDR.getValue());
             int port = Integer.parseInt(ConfigManager.MB_LOGIN_PORT.getValue());
 

src/engine/server/world/WorldServer.java

@@ -51,11 +51,10 @@ import org.pmw.tinylog.labelers.TimestampLabeler;
 import org.pmw.tinylog.policies.StartupPolicy;
 import org.pmw.tinylog.writers.RollingFileWriter;
 
-import java.io.File;
+import java.io.*;
-import java.io.FileWriter;
-import java.io.IOException;
 import java.net.DatagramSocket;
 import java.net.InetAddress;
+import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.time.LocalDateTime;
@@ -249,6 +248,19 @@ public class WorldServer {
 
 			String name = ConfigManager.MB_WORLD_NAME.getValue();
 
+			if (ConfigManager.MB_EXTERNAL_ADDR.getValue().equals("0.0.0.0")) {
+
+				// Autoconfigure External IP address.  Only used in loginserver but useful
+				// here for bootstrap display
+
+				Logger.info("AUTOCONFIG EXTERNAL IP ADDRESS");
+				URL whatismyip = new URL("http://checkip.amazonaws.com");
+
+				BufferedReader in = new BufferedReader(new InputStreamReader(
+						whatismyip.openStream()));
+				ConfigManager.MB_EXTERNAL_ADDR.setValue(in.readLine());
+			}
+
 			if (ConfigManager.MB_BIND_ADDR.getValue().equals("0.0.0.0")) {
 
 				try (final DatagramSocket socket = new DatagramSocket()) {
@@ -258,6 +270,9 @@ public class WorldServer {
 
 			}
 
+			Logger.info("External address: " + ConfigManager.MB_EXTERNAL_ADDR.getValue() + ":" + ConfigManager.MB_WORLD_PORT.getValue());
+			Logger.info("Internal address: " + ConfigManager.MB_BIND_ADDR.getValue() + ":" + ConfigManager.MB_LOGIN_PORT.getValue());
+
 			InetAddress addy = InetAddress.getByName(ConfigManager.MB_BIND_ADDR.getValue());
 			int port = Integer.parseInt(ConfigManager.MB_WORLD_PORT.getValue());