I have an ISA server with three IP addresses on the external NIC. There are needed because of some internal Citrix Servers. The ISA is behind a Checkpoint Firewall. The problem is that sometimes the ISA will use one of the other IP addresses instead of the primary addresses on the NIC. This creates a problem because checkpoint will drop traffic from these other addresses. How do I keep ISA from only using the primary IP and using the other two for inbound traffic only?