This is the password for authentication.
If the value of hpnicfDLDPAuthenticationMode is null,
the user cannot set this node.
If the value of hpnicfDLDPAuthenticationMode is simple or MD5,
the user must set this node with a string.
When the user gets or walks this node,
it displays a cipher password if hpnicfDLDPAuthenticationMode is MD5 or
simple or a zero-length string if hpnicfDLDPAuthenticationMode is null.