I currently own a Buffalo N300 wireless router. I also have a small G3 Lombard laptop hooked up to it via ethernet cable.
With my previous router, port-forwarding was straight forward and worked flawlessly. However, with this router it's just as easy, but it absolutely refuses to forward the ports.
If I disable the firewall, no dice. If I create a static lease for an IP and assign it to the MAC address of the laptop and try, no dice. If I do that along with setup the DMZ for the IP address of the static lease to the laptop, no dice as well.
The laptop's iptables are setup to allow any and all requests to and from any client. So that is not the issue; it worked perfectly fine with the previous router.
What is concerning is that it will forward it's own remote web interface no problem on port 8080. With my previous router I could forward ports: 21, 22, 80, and 9091 no problem at all. This one seems to simply ignore whatever I ask it in terms of port-forwarding.
If anyone can help me out on why exactly this is happening I'd appreciate it.
EDIT: Also, the router came with the latest version of DD-WRT available for its model (build 17135).