Help with Exceptions in winxp firewall

[must_masti03]

I have 3 pcs with all sp2. Iam using win xp sp2 firewall.

I have static ip's on all the pcs.

How can i allow file sharing only for these 3 pcs.

I have tried this but it confuses me.

Windows firewall-> Exceptions-> file and printer sharing->change scope->
I have inputted all my ips with comma in each and ended up with /subnet.
eg:10.11.30.201,10.11.30.202,10.11.30.203/255.0.0.0

I have done for all the ports.

After a while if i checked,the allowed ip column changed like this

10.11.30.1/255.0.0.0.

what should i do.

[sbemister]

Since someone at MS was so kind as to type out directions for this, I will just plagerize them here. You will need to do this on all three computers.

To start the Network Setup Wizard
You must be logged on to this computer as an administrator to complete this procedure.

Start the Network Setup Wizard.
Follow the instructions on your screen.

Important

Before running the Network Setup Wizard, make sure that your network hardware is installed and working properly on all of the computers on your network.

Before running the Network Setup Wizard on computers running Windows 98 Second Edition or Windows Millennium Edition, make sure Internet Connection Sharing is disabled on these computers.

Notes

To start the Network Setup Wizard, click Start, click Control Panel, click Network and Internet Connections, and then click Network Setup Wizard.
If you plan to use Internet Connection Sharing (ICS), run the Network Setup Wizard on the host computer first. The host computer is the one that will share its Internet connection.
During the Network Setup Wizard, we recommend that you create a floppy disk to run the Network Setup Wizard on the other computers on your network.

If you select This computer connects to the Internet through a residential gateway or through another computer on my network on the Select a connection method page, the Network Setup Wizard will open the Windows Firewall ports needed to discover a residential gateway and ensure that Internet Gateway Device Discovery and Control is running.
The Network Setup Wizard can only be run on computers running Windows 98, Windows Millennium Edition, Windows XP, or Microsoft Windows XP Service Pack 2 (SP2).