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GUIDE: Port Forwarding - Walkthrough & Tips


bruddog

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Introduction                                                         
PORT FORWARDING GUIDE...

I get requests to help host online TSB games on AIM pretty frequently. So, I wrote this guide. If you can't get Nestopia to host, then that means you are likely behind a router and need to forward your ports.

A simplified summation of this problem is that your router is blocking incoming requests that are trying to connect to your computer from the outside internet (WAN). The requests that have permission can connect. You need to set up your router so that it knows that an incoming request on port 6996 (Nestopia's port) is okay to pass through.

Step 1:                                                                  
FIND YOUR PC AND ROUTER INFORMATION...

These are things that you will need, and that no one can help you with.

1. Your router’s admin name.
2. Your router's password. Typically, the default values are listed in the manual or can be found by doing an Internet search for your router's specific model. Sometimes, the admin name and/or the default password is labeled to the side or on the bottom of the router itself.
3. Your router's IP address. An IP address is used to locate another device or computer on a network or the Internet.

Below are the most common default router IP addresses by router manufacturer:

3Com - 192.168.1.1
Apple - 10.0.1.1
Asus - 192.168.1.1, 192.168.1.220
Belkin - 192.168.2.1, 10.1.1.1
Buffalo - 192.168.11.1
Dell - 192.168.1.1
D-Link - 192.168.0.1, 0.30, 0.50, 1.1, 10.1.1.1
Linksys - 192.168.0.1, 1.1
Microsoft - 192.168.2.1
Motorola - 192.168.10.1, 20.1, 30.1, 62.1, 100.1, 102.1, 1.254
MSI - 192.168.1.254
Netgear - 192.168.0.1, 0.227
Senao - 192.168.0.1
SpeedTouch - 10.0.0.138, 192.168.1.254
Trendnet - 192.168.0.1, 1.1, 2.1, 10.1,
U.S. Robotics - 192.168.1.1, 2.1, 123.254
Zyxel - 192.168.1.1, 2.1, 4.1, 10.1, 1.254, 10.0.0.2, 0.138

As you can see the most common ones are 192.168.0.1 or 192.168.1.1. To verify your router's IP addess, open up a command prompt. (We will also need the command prompt to get your computer’s IP address.)

Windows Vista and 7 Users:

1. Click "Start"
2. Type "cmd" and press "Enter"

[ Note: For some commands and options to work in the Windows Vista and 7 command line, you must run the command line as an "Administrator." To do so, right-click on the cmd icon and choose "Run as administrator." ]

Windows NT, 2000, and XP Users:

1. Click "Start"
2. Click "Run"
3. Type "cmd" or command and press "Enter"

The command prompt screen should look something like this:

lGTVW3x.png

Next, type "ipconfig" and press "Enter." You will see a screen that looks something like this:

JozYN7y.png

Your router address should be the number listed where the green box is. Your computer's IP address will be listed where the red box is. (Remember or write down both of these numbers, as you will need them soon.)

Step 2:                                                                  
LOG INTO YOUR ROUTER...

Next, log into your router to setup port forwarding.

Open up your Internet browser and type in your router's address into the address bar and press "Enter."

FDdPIFX.png

You will be presented with a log-in screen asking for an admin/log-in and password. If you don’t have these, try any combination of:

admin
user
password
administrator


Step 3:                                                                  
SETUP PORT FORWARDING...

After you've logged into your router and are ready to setup port forwarding, you should know that every router is a little bit different, so you'll want to look for something like the following list, as 'port forwarding' can be under different tabs or names in your router's menu. Here are some possible names or keywords:

1. Port Fowarding
2. Port Triggering
3. Applications and gaming
4. Virtual Server
5. Firewall > NAT/Gaming
6. NAT

Here is one example:

ZxfoTyE.png

1. In the Applicatoin box type: "Tecmo Super Bowl" (or whatever name you like).
2. In "Port from" type "6996"
3. In "Protocol" choose "Both." (If your router only lets you choose UDP or TCP, you will have to create two identical entries choosing TCP for one entry and UDP for the other entry. The name in the application box will need to be different.)
4. In "IP Address" you'll need to type in your computer's IP address that we found previously in the above steps.

ADDITIONAL TIPS:                                              

1. Uninstall Hamachi if you have it installed. This will likely screw up port forwarding.
2. Disable or turn off Windows Firewall or any Software firewall programs as they will also prevent connections from coming into your computer.
3. Make sure you aren’t behind multiple routers or modems. If you are, you may have to setup both routers for port forwarding.
If you still can’t get things working, you may need to put your router in "DMZ Mode," but this should be a last resort as it removes the protection your router is giving your computer and allows you to assign your Internet IP to one of the computers on your network.

IF YOU STILL NEED HELP:

Have the following information ready and try and find someone who is familiar with this process. You can find me on AIM at the username: bruddog

1. Internet Service Provider (AT&T, Time Warner, Cox, etc.)
2. Router Model
3. Router Password
4. Operating System (Windows 8, Windows 7, XP, Vista, etc.)

PORT FORWARDING GUIDE.doc

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  • 2 weeks later...

Thanks for this, will have to take another run at port forwarding.

One questions I have, pertaining to this on your sheet "3. Make sure you aren’t behind multiple routers or modems. If you are you may have to set up both routers for port forwarding"

I have a DSL modem and that is connected to the lynksys router. So i need to port forward my DSL modem also?

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Thanks for this, will have to take another run at port forwarding.

One questions I have, pertaining to this on your sheet "3. Make sure you aren’t behind multiple routers or modems. If you are you may have to set up both routers for port forwarding"

I have a DSL modem and that is connected to the lynksys router. So i need to port forward my DSL modem also?

I've been hoping to figure this one out for a few years now. My PC is connected to a Lynksys router which is in turn connected to a Comcast modem/router. So I am behind multiple routers. I found some instructions on the basic idea of double port forwarding...


/>http://portforward.com/help/doublerouterportforwarding.htm

...but after a while I was stuck on trying to figure out what exactly my routers and pc's internal and exteral IP's are. I'm able to run the command (can't remember what it is) in dos that spits out the ip's, gateway, and dns #'s but get confused on where I am and my point of reference....if that makes sense. So when I host I always just plug the PC directly into the comcast modem/router. I'd just leave it plugged into that but I've got some other equipment that also needs to be plugged directly into the modem cause I can't get it to see the outside thru the lynksys. I'm sure if I had an IT guy here my setup could be simplified.

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  • 4 weeks later...
  • 2 weeks later...
  • 4 weeks later...
  • 1 month later...

So I followed this walkthrough (extremely helpful BTW, wouldn't have had a clue otherwise), and I think I'm good to go. Forgive my ignorance, but how do I go about hosting a game? How do I set it up? Do I just send my IP address to the other guy? Any "screenshots" on how to do this? (I'm a visual learner ;-) )


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So I followed this walkthrough (extremely helpful BTW, wouldn't have had a clue otherwise), and I think I'm good to go. Forgive my ignorance, but how do I go about hosting a game? How do I set it up? Do I just send my IP address to the other guy? Any "screenshots" on how to do this? (I'm a visual learner ;-) )

Change the port number to the same number you used when setting up port forwarding (most are 6996).

Then put your computer's external IP (Google what's my IP) and attach :6996 to the back of it on the IP/SID line.

Instead of hitting connect, press new game.

Give your opponent the IP/SID information and they will press connect.

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