How to Configure Port Forwarding Using dd-wrt

You can configure port forwarding using dd-wrt firmware.

If you do any gaming or torrenting and your computer is behind a router, then you may need to setup port forwarding. Port forwarding refers to the practice of configuring a rule on your firewall or router that lets it know where to direct certain types of traffic. Since most home computer users share a single public IP address, the router needs to know which machine within the local network to direct traffic to when it's initiated from the outside and through your firewall. This article shows you how to configure port forwarding on a Linksys router running ddwrt firmware.

Things You'll Need

• Router running dd-wrt firmware
• IP address of host requiring port forward
• Port number and protocol (udp or tcp)

Instructions

1. Navigate to your router administrative interface by entering the IP address of your router in your browser address bar. The address is usually 192.168.1.1 or 10.0.0.1. The status page of your router will appear.

2. Select the "Nat/QOS" tab. If you aren't currently logged in, you will be prompted to enter your user name and password.

3. Click the "Add" button to create a new box for your port forward rule.

4. In the first box on the left, enter the name of the application that you are setting up the rule for, such as Bit Torrent. In the second box, enter the port number that you want forwarded. Under protocol, select "Both." Enter the IP address of the computer on the inside of your network where the port will be forwarded. And finally, enter the port number that you are forwarding to. This is usually the same as the port number you are forwarding from. Check the "Enable" box.

5. Select "Apply Settings" to immediately apply your new rule. Your service or application should now be able to send traffic over that port through your router to a computer on the inside of your network.

Tips & Warnings

• The default port for Bit torrent is usually 6881, but check your torrent client's preferences menu to make sure that is what you are using.

References

• dd-wrt.com: Unleash Your Router
• No-IP: Support Center: Routers and Firewall Appliances Support Guides: How to Configure Dynamic DNS on DD-WRT