HP Jetdirect Administrator's Guide
Page 143
...HP Jetdirect print servers, specify the fully qualified domain name or a valid IP address for your company. For HP Jetdirect print servers using EAP authentication, some authentication servers may need to be associated with the Common Name as specified on the Jetdirect print server, it will not likely be valid for use this page to enter information for all countries... to identify your device. You should not use during EAP authentication. (Full-featured print servers only) Install a PEM/Base64 (Privacy Enhanced Mail) encoded certificate. Two-character ISO 3166 country/region code.
...HP Jetdirect print servers, specify the fully qualified domain name or a valid IP address for your company. For HP Jetdirect print servers using EAP authentication, some authentication servers may need to be associated with the Common Name as specified on the Jetdirect print server, it will not likely be valid for use this page to enter information for all countries... to identify your device. You should not use during EAP authentication. (Full-featured print servers only) Install a PEM/Base64 (Privacy Enhanced Mail) encoded certificate. Two-character ISO 3166 country/region code.