Authentication servers support the following protocols:

• LDAPv3 simple bind authentication
• RFC 2865-compliant RADIUS with PAP and CHAP authentication
• Kerberos v5

The following certificate file formats are available for LDAP server settings:

• X509 DER format
• X509 PEM format

One of the following encryption types must be used for the Kerberos server:

• Windows

  • AES128-CTS-HMAC-SHA1-96
  • RC4-HMAC
  • DES3-CBC-SHA1
  • DES-CBC-CRC
  • DES-CBC-MD5

• Solaris or Linux

  • DES-CBC-MD5