With the Netgear web interface, you can easily go through the process of Netgear router setup. On the other hand, you can also use the web interface menus and screens for the manual process of Netgear ...

A Netgear router takes a single Internet connection and divides it among multiple computers to create a local area network. This LAN may be wired, wireless or a combination of both connection types.

I havent used a linksys router/netgear switch, but what it sounds like is you need to do something with your port filters/forwards. There should be a gui for your router allowing you to port forward ...