After installing the ISA Server 2000 SP2 on a computer with Windows 2003 SP1, I noticed the following behaviour: when a new policy rule is created, it is necessary to restart the Firewall service and sometimes I need to reboot the machine in order to new rule works. Another problem: it was necessary to enable IPEnableRoute to route the traffic between the LANs. The server has two NIC cards (External and Internal LAN) and both are using private addresses (10.8.50.x/24 and 10.8.51.x/24). Where is my fault ?