hi sensity
To enhance my network skills, and for fun, I installed League of Legends. As far as I've seen there is no need for port forwarding, furthertheless for endpoint nat setup.
I use a DIR626L, behind an ADSL Modem/Router, firewall on, without any special rule or port forwarding.
Do you have some extra needs beyond League of Legends ( teamspeak, mumble, ... ? )
What is exactly the problem you're experiencing ?
( PS : FurryNutz, Packtracer < Can you advice me about a cool forum for networking discussions not DLink related ? I've got a couple of topics about other brands or issues ...
)