Telekom Router use device as a modem

English Network/Internet
1

Hi,

I have an leased Speedport W921V from Telekom(Germany), and I found an option in the Settings called, Use Device as a modem,

how can I use the device as a modem with OpenSuse 11.4 when I’m activating this option ( I need to use it, because the routers firmware is horrible, sometimes portforwarding doesn’t work, sometimes dyndns doesn’t work, I cant even switch off the firewall!).

I hope this option works correctly then I wouldn’t have that much problems…
Thank you!