A firewall is a mechanism enforcing access control, and is considered a first line of defense in protecting proprietary information within the network. The means by which this is accomplished varies, but in principle, a firewall can be thought of as mechanisms both blocking and permitting data traffic based on inbound and outbound IP and MAC rules.
IP-based firewall rules are specific to source and destination IP addresses and the unique rules and precedence orders assigned. Both IP and non-IP traffic on the same Layer 2 interface can be filtered by applying both an IP ACL and a MAC.
Additionally, administrators can filter Layer 2 traffic on a physical Layer 2 interface using MAC addresses. A MAC firewall rule uses source and destination MAC addresses for matching operations, where the result is a typical allow, deny, or mark designation to packet traffic.
To apply firewall rules to a wireless client role:
Note
The WiNG 7.1.X release does not support third-party DPI engine on the AP5XX model access points. WiNG 7.1.2 supports ExtremeAnalytics for ExtremeCloud IQ - Site Engine (Purview™) DPI engine on the WiNG 7.1.X APs. For more information, refer the WiNG 7.1.2 CLI Reference guide, available at https://extremenetworks.com/documentation.