Cisco ASA Firewall has the feature support to be divided into multiple virtual devices known as Device Contexts. With each context being an independent device, having own security policy, interfaces and administrators.
While features like routing tables, firewall features, IPS, and management being supported in multiple context mode, some features are not supported like VPN and dynamic routing protocols.
Following diagram will be referred to while configuring Multiple contexts on ASA Firewall.
Below is a step by step procedure to enable multiple context mode –
Step 1 – Enable multiple context mode.
Step 2 – (Optional) Configure classes for resource management.
Step 3 – Configure interfaces in the system execution space
Step 4 – Configure security contexts.
Step 5 – (Optional) automatically assign MAC addresses to context interfaces.
Step 6 – Complete interface configuration in the context.
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