Question : windows xp inter vlan routing

By using the following command i was able to enable the routing on windows xp.
Click Start, click run and enter regedit.

Locate HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters, we can find a value called IPEnableRouter. Let's double click it and set the value to 1. We are all set then.

and by following command i was able to make communication between ip range 101.168.1.0 and 101.168.2.0
route ADD 101.168.2.0 MASK 255.255.255.0 METRIC 2 IF 1
i was able to ping between the 2 pcs

now my question is can i
1. can i apply restriction on a perticular ip address to not to be accessed by other ip range eg.

let say i want pc with ip address 101.168.2.3 to connect to 101.168.1.0 range where as i dont want any body from 101.168.1.0 range to connect to 101.168.2.3.

2. i want inter vlan routing with vlan 1,2,3 with the winxp router i created above and want that vlan 3 is able to access to the 1 ,2 fully where as 1,2 cannot connect to one pc let say pcvlan3 ip address:101.168.3.4.

3. can i use protcol level restriction inwords and outwords on xp router i configured.

Answer : windows xp inter vlan routing

This is a new question ;)

the answser if yes, As ipcop is a packege to provide a simple interface to manage a linux package call iptables. The configuration you need may not be available within the simple interface of ipcop, but will be available within iptables.