Forwarding port 6346 on the Linksys router to your machine.
Go in your browser and enter the address 192.168.1.1 the password by default is "admin" (For security you should change the password).

Press the tab Advanced seen in the menus.
Then select the tab Forwarding. Enter the port 6346 and check UDP and TCP protocols, check enable and enter your lan IP (if your lan IP has been set automatically -by DHCP- you can find your address at 192.168.1.1/DHCP.htm , click on the DHCP Clients Table button at the bottom, there you'll see the name of your computer with the lan address ie 192.168.1.100, remember the last 3 digits and go put them in the Forwarding tab field. Click apply and voilà!