Home firewall with DLink router and FreeBSD

[Leonardo M. Ramé]

Hi, at home I have a DLink Dir 300 router to provide internet access for my home network. The network is composed by two Windows PCs, one Linux laptop and one FreeBSD server we use mainly for storage and as web/database server.

I must add, the server only have one network card.

I would like to know if its possible to use the FreeBSD server as a Firewall for the whole network, securing LAN and WiFi connections. If this can be done, then how? could you point me to some howto?.

P.S.: this is the 2nd time I send this email, the first time it got caught by SpamAssassin. Maybe because a link in my signature.

Thanks in advance,
Leonardo M. Ramé