Brams, a simple solution would be to get a
cheap router and connect your modem to it and connect one LAN port of router to your number 1 port of your switch. The dedicated router will be better for routing your internal LAN traffic.
If you already have an active LAN config, ignore my ignorance and set up a samba service or ftp service for sharing files across your network. A samba share on your LAN can even be accessed on your Android phone by installing ES file explorer and ftp server program(both are available on play store).
So the connection would be:--
Modem WAN port to-----> WAN port of router.
LAN port of router(any) to-----> Number 1 port of switch.
The other seven ports(assuming you have an 8 port switch) will have an active internet connection. Also they will be on a LAN network.
You can even use wireless dongle for desktop to access the internet connection and share data on LAN.
SAMBA howto:
https://help.ubuntu.com/12.04/servergui ... erver.htmlNOTE: Local LAN connection will be unsecure. Also a switch cannot work as a router. A router can work as a switch.