2.37.1.17.1.8 HESSID-MAC

If you selected the setting user for the HESSID-Type, enter the HESSID of your homogeneous ESS as a 6-octet MAC address. Set the HESSID to be either the BSSID of any AP in your homogeneous ESS or the MAC address of the WLC; enter it with capital letters and without separators, e.g., 008041AEFD7E for the MAC address 00:80:41:ae:fd:7e.

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