If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.
You might also be interested in our huge collection of Router Screenshots where you can see every page of every router that we know of.
To setup port forwarding on the Cisco Cisco677 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:
In windows click on the Start button, and then click Run. This will bring up a Run program box. In the textbox in that window type cmd (WinXP/2k/Vista/Win7) or command (Win95/98/ME). Then click the Ok button. A black msdos prompt window should be open in front of you. Type telnet 10.0.0.1, and then press the enter key on your keyboard.
Type en at the prompt.
You should prompted for your password. Enter your password now. By default the password is blank.
Please visit our default username and passsword page, if the password shown below did not work for you.
Type write at the prompt.
Type reboot at the prompt.
Now that you have forwarded ports for any port on the Cisco Cisco677 you should test to see if your ports are forwarded correctly.