-# The "AuthData" option is either passphrase or file path to the public key
-# file. If the connection is backup connection then set the "Backup" option
-# to true. For normal connections set it false. If it is
-# set to true then this server will be backup router.
+# The authentication data is specified by Passphrase and/or Publickey.
+# If both are provided then both password and public key based authentication
+# is allowed. If the Publickey is used it includes the file path to the
+# public key file. If none of them is provided then authentication is not
+# required.
+#
+# If the connection is backup connection then set the "Backup" option
+# to true. For normal connections set it false. If it is set to true then
+# this server will be backup router.