Perforce Use

Okay this may sound like a noob question…but I’m a noob…so…I’ve purchased DynDNS and a EA6500 Linksys router and Perforce. My goal is to allow a remote user to access my Perforce server that I’m hosting locally on a in-house machine. I followed your portforwarding tutorial and can access my linksys router from anywhere it seems…however…I don’t want to give someone access to my router…the goal is for them to access my server. Under the Apps and Gaming tab of the Smart Wi-Fi Router the Device IP is 192.168…which from my understanding is a internal IP…and it can’t be changed in the router…so how do I give access to an external IP so my Perforce (P4V) server can be accessed remotely…or is that even what I should be doing? I can access my router from wireless machines now…thanks to the DynDNS but that isn’t solving the Perforce remote connection issue.