2.23.20.16.8 HESSID-MAC

If you selected the setting user for the HESSID, enter the HESSID of your homogeneous ESS as a 6-octet MAC address. Select the BSSID for the HESSID for any access point in your homogeneous ESS in capital letters and without separators, e.g., 008041AEFD7E for the MAC address 00:80:41:ae:fd:7e.

Note: If your device is not present in multiple homogeneous ESS's, the HESSID is identical for all interfaces
Telnet path:
Setup > Interfaces > WLAN > IEEE802.11u
Possible values:
MAC address in capital letters and without separators
Default:
000000000000