Live mode

This is the regular operation mode of the Ethical wall and it goes as follow:

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1. In case the communication is allowed and precalculated:

   1. Alice@external.com sends a message "Hello!" to bob@internal.com

   2. This reaches the Edge/Front End, Edge/Front End forwards this to the SIP Filter

   3. Sip Filter checks in the Policy Cache sees this already has been calculated by the Maintenance service

   4. Sip Filter returns the found policy cache, which allows the traffic to bob.

2. In case the communication is blocked and not precalculated:

   1. Eve@external.com sends a message "Hey!" to Bob@internal.com

   2. This reaches the Edge/Front End, Edge/Front End forwards this to the SIP Filter

   3. SIP Filter checks in the policy cache and doesn't find add, thus calculates and adds the calculation result as a record in the Policy cache

   4. SIP Filter returns the calculated policy, which blocks the traffic to bob.

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Learning Mode

This mode applies calculation and caching for the configured policies however only the Default policies are being enforced by the SIP filter.

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