Parse and bind to IP's configured via --server.urls

- Will revisit when aspnet/KestrelHttpServer#1290
  is addressed

Author: halter73

src/Benchmarks/Program.cs

@@ -171,8 +171,9 @@ private static IConnectionAdapter GetConnectionFilter(IConfigurationRoot config)
         private static void Listen(KestrelServerOptions options, IConfigurationRoot config, string url)
         {
             var uri = new Uri(url);
+            var endpoint =  CreateIPEndPoint(uri);
 
-            options.Listen(IPAddress.Loopback, uri.Port, listenOptions =>
+            options.Listen(endpoint, listenOptions =>
             {
                 var connectionFilter = GetConnectionFilter(config);
                 if (connectionFilter != null)
@@ -186,5 +187,21 @@ private static void Listen(KestrelServerOptions options, IConfigurationRoot conf
                 }
             });
         }
+
+        private static IPEndPoint CreateIPEndPoint(Uri uri)
+        {
+            IPAddress ip;
+
+            if (string.Equals(uri.Host, "localhost", StringComparison.OrdinalIgnoreCase))
+            {
+                ip = IPAddress.Loopback;
+            }
+            else if (!IPAddress.TryParse(uri.Host, out ip))
+            {
+                ip = IPAddress.IPv6Any;
+            }
+
+            return new IPEndPoint(ip, uri.Port);
+        }
     }
 }