Trusted Firewall

The Trusted Firewall feature provides virtualization-layer security that improves performance and resource efficiency when communicating between different virtual LAN (VLAN) security zones on the same Power Systems server. Trusted Firewall decreases the load on the external network by moving the filtering capability of firewall packets meeting specified rules to the virtualization layer. This filtering capability is controlled by easily defined network filter rules, which allow trusted network traffic to cross between VLAN security zones without leaving the virtual environment. Trusted Firewall protects and routes internal network traffic between the AIX®, IBM® i, and Linux® operating systems.