When to use Windows or Norton Firewalls

[Guest]

I have a Belkin Wired and Wireless Router/ Modem with a built in firewall
that connects to my ADSL line. I have 2 laptops that connect to the router
via wireless network cards. Is it neccessary to use a software firewall such
as Windows Or Norton 2004 Internet Security as well or will it interfere with
file sharing if I enable them. I have a book on setting up networks and it
advises not to enable a firewall when your computers connect via a gateway.
Is this correct.
When I try using the ping command on the PC I am using to ping the same
computer it times out if Norton firewall is enabled, if I disable it the ping
is successfull. However I don't seem to have any problem sharing files
whether the software firewall is enabled or not.

 

[Neo Anderson]

For inbound threats the hardware firewall, If configured properly, is
usually 100% effective. A software firewall will not help with the inbound
if a hardware one is in play. If you are concerned about outbound traffic
then you will need the software firewall enabled. I only use my router's
firewall and don't worry about outbound. A GOOD Anti-Virus is a MUST
though!!

 

[Hans-Georg Michna]

I have a Belkin Wired and Wireless Router/ Modem with a built in firewall
that connects to my ADSL line. I have 2 laptops that connect to the router
via wireless network cards. Is it neccessary to use a software firewall such
as Windows Or Norton 2004 Internet Security as well or will it interfere with
file sharing if I enable them. I have a book on setting up networks and it
advises not to enable a firewall when your computers connect via a gateway.
Is this correct.
When I try using the ping command on the PC I am using to ping the same
computer it times out if Norton firewall is enabled, if I disable it the ping
is successfull. However I don't seem to have any problem sharing files
whether the software firewall is enabled or not.

Stefano,

the going recommendation is to disable the firewall on the LAN
connection for Windows XP computers that don't have Service Pack
2 installed.

For Windows XP SP2 computers the recommendation is to leave the
firewall on and enable the exception for File and Printer
Sharing.

Hans-Georg

 

[Jack]

Hi
May be this can Help.
Internet -Basic protection: http://www.ezlan.net/firewall.html
Internet Infestation: http://www.ezlan.net/infestation.html
Jack (MVP-Networking).