setup home network allowing my firewall and virus protection to work for network

Posted on 2004-04-14
Medium Priority
Last Modified: 2013-12-14
I am running windows xp (not pro) and I have 2 other computers a win98 and a winME they are all routed to a linksys 4 port
router with switch.
Is there a way that I can configure my xp to protect the system network. I think that I read someplace that it can be configured in
a way that when my computer is off the other are not able to access the internet. This is what I would like to do. I have two children
and when mine is off I would perfer it that way.
Question by:Greg54
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LVL 43

Expert Comment

ID: 10832070
Instead of using the router, you could use Internet Connection Sharing on the Windows XP machine.  You would need a second network card in the XP machine.  Plug your broadband modem into one NIC and plug the second NIC into a hub/switch along with the other computers.  The XP machine would have to be on for the other computers to access the Internet.

If you want to go this way, here is a good link on setting up ICS:


Author Comment

ID: 10832979
My xp machine is a laptop and it wouldn't be convient for another nic.
What about the program xp has
to setup a small business or home network.They give me three options when I set up. It asks if the comjputer connects directly to the internet? And if the others connect thru this computer? Then wouldn't the other two computers be setup using option two that they would connect thru another computer.
I need to investigate a stand alone aditional nic card i guess? Is this a NAT service?
LVL 43

Accepted Solution

JFrederick29 earned 1000 total points
ID: 10833069
Yes, ICS uses NAT like your router does.  It works the same way as the router but its software versus hardware.  Typically the router path is desired over ICS but in your case ICS sounds like the way to go since you want to control access to the net using your laptop.  You could use a USB NIC for the second connection on your laptop...

Once you setup ICS on your laptop, you don't have to do anything on the other computers but make sure DHCP is enabled.  No other configuration is necessary.
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Author Comment

ID: 10833533
is there a better way for me to protect my kids computers from virus and have firewall protection than doing a NAT service and letting them have direct internet ? would I need to purchase software for each computer?
LVL 43

Expert Comment

ID: 10833603
At a minimum you want to install antivirus software on all computers on the network and make sure you keep the antivirus definition files and Windows patches up to date.  That is most important.  I'm not sure how extensive the firewall/packet filtering is on the Linksys router so you could install Firewall software on each computer, it wouldn't hurt.  Sygate Personal Firewall is free and works great.


Author Comment

ID: 10833651
I guess my question is can I use my existing software I purchased from symantics (norton anti virus) can be installed on each computer or do I need to purchase additional software to be able to do live update for the antivirus?
LVL 43

Expert Comment

ID: 10833723
For licensing purposes, you need to purchase a copy for each computer you are putting it on.  You can do Live Update for a year I believe then you need to pay an annual subscription for that service.

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