VLAN, ACL and security
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Hello All,
I'm reading this Omada configuration guide -> Commonly Recommended ACL Configurations on Omada Switches
In Introduction section it is said -> "Hosts in the same VLAN can communicate directly with each other, while those in different VLANs cannot, thereby enhancing the security of the LAN.".
My understending about VLANs is/was that appling only VLANs is all I need to saparate/block comunication between the VLANs.
The example in the article describes two networks Network A with VLAN ID 10 and Network B with VLAN ID 20.
Then, the next steps discribe how to define these networks with VLANs.
But in step 4 it is said "Create an ACL to deny the mutual access between Network A and Network B"
Why this ACL is needed? Deny the mutual access between the networks should be provided by defining separate VLANs.
