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--- pfsense:install_pfsense:create_vlans [2020/12/16 11:29] – peter
+++ pfsense:install_pfsense:create_vlans [2020/12/16 11:58] (current) – [PFSense - Install pfSense - Create VLANs] peter
@@ Line 1: / Line 1: @@
 ====== PFSense - Install pfSense - Create VLANs ======
+VLANs are assigned to a specific parent interface.
+The parent interface refers to the **physical interface** that will transfer the VLAN tagged traffic.
+<WRAP info>
+**NOTE:**  Historically the best practice was to leave the parent interface unassigned due to undefined, unpredictable or inconsistent behaviour by some hardware, depending on the manufacturer.
+There was a chance that tagged traffic could be stripped of its tags and end up allocated to the parent interface introducing a security risk.
+Nowadays, this should no longer be an issue, as the system ensures that only VLAN capable interfaces will be shown.  In this setup, all VLANs are configured against the **LAN** interface.
+</WRAP>
+----
 ===== Create Clear VLAN =====