Port Forwarding the 3com 3C857 Router for BitTorrent


What is Port Forwarding?

If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.

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Home > Routers > 3com > 3C857 > BitTorrent

Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the 3com 3C857 router your computer needs to have a static IP address. You should complete one of the following steps first:


Now that you have setup a Static IP Address on your computer, please enter the IP address that you assigned to your computer here:

192.168.2 <-- Don't Skip This Step!

Login to the 3com 3C857 Router

Now we need to know your routers IP address. You can find it a variety of ways.

How To Find Your 3com 3C857 Router IP Address

It's ok if you don't know your 3com 3C857 router's internal IP address. You can find it by doing one of the following:

Login To The 3com 3C857 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

3com 3C857 Screenshot 0

In the picture above the address bar has http://www.google.com in it. Just replace all of that with the internal IP address of your 3com 3C857 router. By default the IP address should be set to 192.168.2.1.

3com 3C857 Screenshot 1

You should see a box prompting you for your 3com 3C857 password. Enter the password now.

The Default 3com 3C857 Router Password is: admin


Click the Log in button to log in to your 3com 3C857 router.


Default Usernames and Passwords for other 3com Routers

Please visit our Default 3com Router Passwords page if the username and password shown below did not work for you.

If you can't login to your router because you forgot your 3com 3C857 router password, use our How to Reset a Router Password guide to set your 3com 3C857 router back to its factory settings.


How to Port Forward BitTorrent on the 3com 3C857


Having trouble forwarding ports on the 3com 3C857?

If you are having trouble with this guide, then perhaps PFConfig may be your solution. PFConfig is a software tool that will automatically forward ports for your 3com 3C857 router to save you time and hassle.

Before we can forward ports for BitTorrent, we should set the ports that BitTorrent uses. Here is a brief walkthrough on how to do that. Go ahead and open up BitTorrent.

In the menu at the top of your screen, click the View link. Then in the list of options that drops down click the Settings option.

A new window should have poped up that looks like the picture above. There are a few tabs at the top of this window, click the Network tab.

The number in the starting at port box tells BitTorrent where you start looking for open ports. BitTorrent works it's way up from that port number until it finds a port that is open. Every port that BitTorrent has to check takes time. So it would be a good idea to forward the port that you enter into the Starting at Port box. Many ISPs block ports in the 6000 range. Please choose a port between 10000 and 60000 then enter it into the Starting at Port box. Then enter that port into the box below.

BitTorrent's Port for incoming connections

If you plan on downloading multiple files at the same time via BitTorrent, you need to open up one port for each file. This guide will show you how to open up one port for each file. If you chose to put port 12540 into the Starting at Port box and wanted to have five files going at the same time, you should forward ports 12540 to 12544.

3com 3C857 Router Port Forwarding Screenshots

Now that you are logged in to your 3com 3C857 router you should see the following:

3com 3C857 Screenshot 2

Click the Firewall link.

3com 3C857 Screenshot 3

Click the New button.

3com 3C857 Screenshot 4

Select Custom from the Local Service drop down box.

3com 3C857 Screenshot 5

Forward User Defined Port on the 3com 3C857

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. BitTorrent requires you to forward the ports you entered above. Go ahead and enter the settings shown above into the Virtual Server Settings menu and then click Add.

3com 3C857 Screenshot 6
3com 3C857 Screenshot 7 Server IP Address: 192.168.1. 3com 3C857 Screenshot 8
Local Service:
Custom Service Name:
Specify Custom Service Ports:
3com 3C857 Screenshot 9

And that is it! You are done!


Test if Your Ports are Open

Now that you have forwarded ports for BitTorrent on the 3com 3C857 you should test to see if your ports are forwarded correctly.

To test if your port has been properly forwarded, you can use our Open Port Check tool. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.

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