How much Protection do I need?

[brian4cde]

I currently have 4 computers and 1 (all-in-one) printer networked on a Linksys Router (BEFSR41) which is connected to a live DSL Modem. I came upon a SonicWall SOHO3 Firewall from my old business office. Is it worth hooking up the SOHO3 to my existing network? If so, in what order do you suggest the connections be made? Modem - ? - ? - Computers.
Thank you oh so much in advance. Brian.

[pangea33]

The BEFSR41 is a NAT router, which is by definition, a hardware firewall. Your LAN machines are assigned private IP addresses by the Linksys DHCP server, and aren't directly accessible from the outside world without port forwarding. It is still adviseable to use a quality software firewall, like ZoneAlarm's free edition, on each of these machines.

Here is a link (http://www.linksys.com/servlet/Satellite?childpagename=US%2FLayout&packedargs=c%3DL_Product_C2%26cid%3D1122062340941&pagename=Linksys%2FCommon%2FVisitorWrapper) to more info on the Linksys site.