LAN security

From: Fred Hoffman (anonymous_at_discussions.microsoft.com)
Date: 07/21/04 

Date: Tue, 20 Jul 2004 17:32:57 -0700

My question concerns the software I ought to install in a
new laptop I plan to include in a LAN connected to the
internet through a cable modem.

The scheme I am following is what Windows XP Help
calls "Ethernet network with external DSL or cable
modem". In my setup the cable modem will attach directly
to a host computer through an ethernet connection. The
network hub, a D-Link DI 624 wireless router will connect
to the host computer via a second ethernet port and to the
laptop wireleessly. The host computer is a Dell Dimension
4400 desktop and the one other computer is a Dell 600m
Laptop. Both run Windows XP Home. I have Norton Internet
Security installed on the desktop.

My question is whether it is desirable/necessary to
install a software firewall on the laptop or whether an
antivirus program will be sufficient.

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