VRF Aware Cisco IOS Firewall
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Overview: VRF Aware Cisco IOS Firewall applies Cisco IOS Firewall functionality to VRF (Virtual Routing and Forwarding) interfaces when the firewall is configured on a service provider (SP) or large enterprise edge router. VRF Aware Cisco IOS Firewall is not supported on MultiProtocol Label Switching (MPLS) interfaces. The Cisco IOS Firewall provides robust, integrated firewall and intrusion detection functionality for every perimeter of the network. The Cisco IOS Firewall enhances existing Cisco IOS security capabilities such as authentication, encryption, and failover, with state-of-the-art security features such as stateful, application-based filtering (context-based access control).