BigJohn, You Don't Say Whether...
...the router has a firewall...If it does, then you should be fine because all computers which are connected to the router will be protected with a firewall..But generally, a software firewall isn't considered as effective as a hardware firewall...It's still OK though...
It's also not clear whether all the other computers are connected to the router separately and can connect to the net separately...or are they connected to net "through" the Windows 2000 machine through a router switch? In other words, if you disconnect the Windows 2000 machine from the router will the other computers be able to connect to the internet?
Recognize also, as it relates to the internet network, if your Windows 2000 computer is the only machine with a software firewall (NIS), then only that one will be protected inside your network. If all the other computers are connected directly to the Windows 2000 machine through the router switch then you might consider network aware viruses that can transmit to unprotected machines should a virus attack one computer . And if ALL of the machines connect directly to the net through the router, then they will need at least a software firewall as well..
Hope this helps.
Was this reply helpful? (0) (0)