How to Configure Your Router for DMB NetPlay

Overview

To host NetPlay sessions in Diamond Mind Baseball, you may need to configure your router to forward port 32158 to your computer. This process is also known as "opening a port" or "port forwarding." This guide provides general steps that should work with most routers, though specific menu names and locations will vary by manufacturer and model.

Important: DMB uses port 32158 for NetPlay connections. This is the port number you'll need when configuring your router.

What You'll Do (3 Simple Steps)

1. Find your computer's IP address
2. Log into your router
3. Add one forwarding rule for port 32158

The exact menu names in your router will vary by manufacturer and model, but the concept is the same on all routers.

Step 1: Find Your Computer's IP Address

Before configuring your router, you need to know your computer's local IP address. This is the address your router assigns to your computer (something like 192.168.1.100 or 10.0.0.100).

Windows Instructions

1. Click the Windows Start menu
2. Press Windows Key + R to open the Run dialog
3. Type cmd and press Enter
4. In the Command Prompt window, type: ipconfig
5. Press Enter
6. Look for the line that says IPv4 Address — this is your local IP address

Example: You might see IPv4 Address . . . . . . . . . . . : 192.168.1.100

Write down this number. You'll need it in the next step.

Step 2: Log Into Your Router

Open Your Router's Settings

1. Open your web browser (Chrome, Firefox, Edge, Safari)
2. Enter your router's IP address in the address bar. Common router addresses include:
   • 192.168.1.1
   • 192.168.0.1
   • 10.0.0.1
3. Press Enter
4. You should see a login screen

If none of these addresses work: The address might be printed on your router itself or in paperwork from your internet service provider.

Log In

1. Enter your router's username (often admin, administrator, or left blank)
2. Enter your router's password. Default passwords vary widely; check your router or ISP documentation
3. Click Log In or Submit

If you don't know the password: Check the sticker on your router or documentation from your ISP. If you changed it before and don't remember it, you may need to reset your router to factory settings (consult your router's manual).

Step 3: Create the Port Forwarding Rule

Find the Port Forwarding Menu

Once logged in, look for a menu item with one of these names:

• Port Forwarding
• Virtual Servers
• Applications & Gaming
• Advanced → Port Forwarding

Note: The exact location varies by router brand. If you can't find it, check your router's manual or search online for "[your router model] port forwarding."

Enter These Settings

Once you find the port forwarding section, create a new rule with these settings:

Field Name Variations: Different manufacturers may use different terminology for the same settings:

Common Configuration Examples:

Single Port Entry (Most Common):

• Service Name: Diamond Mind Baseball
• Port: 32158
• Protocol: TCP
• IP Address: 192.168.1.100 (your computer's IP)

Port Range Entry (Some Routers):

• Service Name: Diamond Mind Baseball
• Port Range Start: 32158
• Port Range End: 32158
• Protocol: TCP
• Forward to IP: 192.168.1.100

Important Note on Protocol: Your router might ask if you want TCP, UDP, or Both. Always choose TCP. (If "Both" is the only option, that's fine—just don't choose UDP alone.)

Save Your Settings

1. Click Apply, Save, or Save Settings
2. If your router prompts you to reboot, click Reboot or Restart Router and wait a few minutes

Step 4: Test Your Configuration

1. Launch Diamond Mind Baseball
2. Choose Game → Host NetPlay game(s)...
3. Find your public IP address by visiting whatismyip.com in a browser
4. Have a friend try to connect to you using that public IP address

If it works: You're done! Your port forwarding is configured correctly.

If it doesn't work: See the troubleshooting section below.

It's Not Working? Try This

Check #1: Did Your Computer's IP Address Change?

Your router assigns IP addresses automatically. Your computer's IP might have changed since you set up port forwarding.

1. Run ipconfig again (see Step 1)
2. Check if your IPv4 Address is the same as before
3. If it's different, log back into your router and update the port forwarding rule with the new IP address

Check #2: Is Windows Firewall Blocking the Connection?

Even if your router is set up correctly, Windows Firewall might be blocking the connection.

1. On your computer, search for "Windows Defender Firewall"
2. Click "Allow an app through firewall"
3. Look for BASEBALL Application in the list
4. Make sure there is a checkmark next to it
5. If it's not in the list, click Allow another app and browse to find Diamond Mind Baseball

Security Reminder

Keep your router's password secure and update your router's software when prompted by the manufacturer—just like you'd update your computer.

Still Need Help?

If you're still having trouble:

• Consult your router's manual or manufacturer website
• Contact your internet service provider's technical support
• See the NetPlay section in Diamond Mind Baseball's Help Library (in the game: Help → Help Topics)

Summary

To set up port forwarding for Diamond Mind Baseball NetPlay:

1. Find your computer's local IP address using ipconfig
2. Log into your router's settings
3. Create a port forwarding rule for port 32158 using TCP
4. Point the rule to your computer's IP address
5. Test by hosting a game and having a remote user connect

While the exact steps vary by router brand, the core concept is always the same: you're telling your router to send incoming connections on port 32158 to your computer so remote players can join your NetPlay games.