I have a WRV54g and have needed to port forward GRE traffic. I created port forward statement and then save the config (cfg) file to my computer. Using notepad I edited the particular statement from type 6 or 17 to type 47. Then I uploaded the configuration back to the router and it works. Now, I am trying to use the WRTP54g for Vonage and it does not have a config file, just a bin file. Is there a way to edit this file which is typically known as operating system?