CNV-15796: UI for MAC spoof filtering

Author: Shikha Jhala

modules/virt-creating-bridge-nad-web.adoc

@@ -21,4 +21,5 @@ to provide existing layer-2 networking to pods and virtual machines.
 . Click the *Network Type* list and select *CNV Linux bridge*.
 . Enter the name of the bridge in the *Bridge Name* field.
 . Optional: If the resource has VLAN IDs configured, enter the ID numbers in the *VLAN Tag Number* field.
+. Optional: Select the *MAC Spoof Check* checkbox to enable MAC spoof filtering. This feature provides security against a MAC spoofing attack by allowing only a single MAC address to exit the pod.
 . Click *Create*.