What is Zone Based Policy Firewall?
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Accordingly, what is a zone based firewall?
A Zone-based firewall is an advanced method of stateful firewall. In stateful firewall, a stateful database is maintained in which source IP address, destination IP address, source Port number, destination port number is recorded.
Additionally, is Cisco ASA zone based firewall? Even though ASA devices are considered as the dedicated firewall devices, Cisco integrated the firewall functionality in the router which in fact will make the firewall a cost effective device. The zone based firewall came up with many more features that is not available in CBAC.
Furthermore, what are the general rules for applying Zone Based Policy Firewall?
Rules for applying Zone-based Policy Firewall:
- A zone must be configured before an interface is assigned to it and an interface can be assigned to only a single zone.
- All traffic to and from an interface within a zone is permitted.
- All traffic between zones is affected by existing policies.
What is the minimum Cisco IOS version that supports zone based firewalls?
According to the Cisco IOS software advisor, zone-based firewalls were released in 12.4(6)T6 so that would be the minimum IOS release. All of these are later releases but none of them are working.