I'm trying several TP-LINK modems (this is the 3rd one) but I don't seem to have luck with port forwarding.
Unlike other DSL modems, even older ones, on these TP-LINK I can not set the INTERNAL port for my forwarding (eg: i need external port 2280 being forwarded to internal port 81 of 192.168.x.x but this modems don't let me). I can only set EXTERNAL ports, and the modem does straight forwarding to the same internal ports.
Is there ANY tp-link DSL modem that you know of, where I can do a complete forwarding to different internal ports, too?
I have an old TP-LINK 3G modem, and I could correctly make it reachable from the WAN and setting a port to reach it (eg: if I want to manage my router from the WAN I just use DDNS, and reach my router on a specific port).
I don't see this function on this new DSL modem. Do you know any DSL modem that allows WAN management?