If the X0 interface is already portshield with other ports like X2, X3 etc, It will not allow you to bridge WLAN interface with X0 interface and we will get the following error while bridging the ports.
Error: Index of the interface.: Portshield interfaces can not be assigned to L2 bridge pair.
This release includes significant user interface changes and many new features that are different from the SonicOS 6.2 and earlier firmware. The below resolution is for customers using SonicOS 6.5 firmware.





How to Test:
After you bridge the WLAN interface with LAN (X0), you can see the WLAN interface IP address same as X0 interface IP and the IP assignment as "Secondary Bridged(WLAN)"
The below resolution is for customers using SonicOS 6.2 and earlier firmware. For firewalls that are generation 6 and newer we suggest to upgrade to the latest general release of SonicOS 6.5 firmware.





How to Test:
After you bridge the WLAN interface with LAN (X0), you can see the WLAN interface IP address same as X0 interface IP and the IP assignment as "Secondary Bridged(WLAN)"
To PortShield back the unassigned interfaces, please follow the below steps.
 NOTE: We can again portshield the unassigned interfaces through wizard. But while doing that all the ports except X0, X1 and W0 (if present) will get PortShield with X0 interface. And if you have any interface configured with any other zone and network ID will lose all the interface configuration and will get PortShiled with X0. Hence before portshield the interfaces, note down the settings of the interfaces configured with other network ID and after you portshiled all the interfaces, again you have to re-configure those interface back with the settings it had before.

If you had any interface configured with any other IP settings and now portshield with X0 interface, re-configure the interface with settings it had before.
How to Test:
Now you can see the interface IP assignment showing portshield to X0