Q of Forwarders Statement

[Hideaki NISHIMURA]

Hello, bind-users.

I have two questions about forwarder function (bind-9.3.1).

first, I set up the forwarders zone as follows (summary).

    --------------------------------------------------------
    options {
       ...
       forward only;
       forwarders { 192.168.5.1; 172.16.5.1; };
       ...
    };

    zone "foo.bar.co.jp" {
       type master;
       file "db.foo.bar.co.jp";
       forward only;
       forwarders {};
    };
    --------------------------------------------------------

  Generally, "forward" and "forwarders" statement use with
  "forward" zone type.

  But, I want to set up "no forward" in foo.bar.co.jp zone.
  So that, I am setting up these statement with "master"
  zone type.

  Is this configuration is correct ?

Second, I read the explanation of zone statement. 
(Bind 9 ARM distributed with bind-9.3.1).

  In "6.2.23 zone Statement Grammar" section:

    --------------------------------------------------------
    Zone zone_name [class] [{
      ...
      [ forward (only|first) ; ]
      [ forwarders { ip_addr [port ip_port] ; [ ip_addr [port ip_port] ; ... ] }; ]
      ...
    }];
    --------------------------------------------------------

    This description means forwarders statement needs a
    least one option ("forwarders { X.X.X.X; };").

  But, in "6.2.24.1 Zone Types" section, "forward" paragraph:

    --------------------------------------------------------
    If no forwarders statement is present
      or an empty list for forwarders is given, ...
    --------------------------------------------------------

    This description means it arrows "forwarders {};".

  Which is correct ? (arrows least one or empty)

Best regards.

--------
Hideaki NISHIMURA (^_^)