What are the differences between port isolation and ACL on a WLAN device

For WLAN devices:

The port isolation function isolates interfaces in a VLAN, providing secure and flexible networking solutions.

To implement Layer 2 isolation between interfaces, you can add these interfaces to different VLANs. However, this approach wastes VLAN resources. Port isolation can isolate interfaces in the same VLAN, and a port isolation group can effectively implement Layer 2 isolation between these interfaces. Port isolation offers secure and flexible networking solutions.

An ACL is a packet filter that filters packets based on rules. A device with an ACL configured matches packets based on the rules to obtain the packets of a certain type, and then decides to forward or discard these packets according to the policies used by the service module to which the ACL is applied.

Uncontrolled mutual access between different network segments brings security risks. After an ACL is applied to a QoS traffic policy or simplified traffic policy, the access rights between the users on different network segments are restricted.

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