Effective Setting and Mixed-List Policies
Agent enforcement in WFP mode supports mixed-list or grey list policies.
Consider the mixed-list (both allow and deny) policy example from the Enforcement Agent section:
1. ALLOW 1.2.3.30 tcp port 80- wt1000
2. BLOCK 1.2.3.0/24 ip- wt998
3. ALLOW 1.2.0.0/16 ip- wt997
4. Catch-all: DROP ingress, ALLOW egress - wt996
When a packet headed for the host 1.2.3.30 tcp port 80 reaches the firewall, it matches filter 1 and is allowed. However, a packet that is headed for the host 1.2.3.10 is blocked because of filter 2. A packet that is headed for host 1.2.2.10 is allowed by filter 3.