IPP Authentication is a feature which provides 'HTTP Basic Authentication' for IPP Print-Jobs. Use this OID to configure the IPP Authentication Username. Strings of length 1 to 31 and having any printable alphanumeric characters except ()<>@,;:\/[]?={} can be set. Setting with an empty octet string is equivalent to resetting the Username to NULL. npSecurityIppAuthUsername(1.3.6.1.4.1.11.2.4.3.20.62.0) and npSecurityIppEncryptedAuthPassword(1.3.6.1.4.1.11.2.4.3.20.63.0) have to be set in the same varbind. Use npSecurityIppAuthentication(1.3.6.1.4.1.11.2.4.3.20.61.0) to enable the feature once the username and password are configured. Errors returned: BAD VALUE(v1) or WRONG VALUE(v2/v3) will be returned when the OID is set with invalid value. GENERIC ERROR will be returned if the interdependency validation between the above three OIDs fails.