I have an ubuntu 12.10 server installed, got a static ip from my ISP. Pinging the ip results in success. I also have a huawei Echo-Life modem. Following this site I was able to set the ports to be forwarded. I also checked this with the guys at huawei. The problem is that when I enter my static ip in the browser, I always get stuck at the modem/router login interface.
Going to the ip address assigned to my ubuntu server (on my network) I can see that nginx serves pages correctly. Another thing is that getting my modem/router interface is only possible via my local network. I asked a friend to try my static ip but he said he got a blank page. I think this means that the gateway is not accessible from the outside world.
I think I'm missing something minimal here as it's not supposed to be this complicated setting up a home server. Any help would be appreciated.