I had some troubles with some newer Netopia modems and configuring them in routed subnet mode. The modem wouldn’t pass any outside traffic to our Cisco router. For initial configuration, I followed this guide:http://www.netopia.com/support/hardware/technotes/CQG_042.htmlThe problem is that you have to allow the addresses to bypass the stateful inspection. This is done here:Home > Security > Stateful Inspection > Exposed AddressesThen you add your IP or range in the fields provided.