This is the new feature (NAS Identifier) implemented for Wireless LAN Controller (WLC) firmware version 7 and above that yet to be documented. I will relay the message to the correct team to include that.
In general, NAS Identifier is just an extra information included in the radius request that can be use by the radius server to identify the request is send from which devices or locations or policy control base base on the custom value. If radius server doesnât enforce NAS Identifier, basically this will be ignored by radius server upon the request received.
For WebAdmin Radius Authentication, we are not implementing base on NAS Identifier and itâs implemented base on the Radios Attributes. Details information please refer to the forum link below (Step 10 - 14).