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3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<p><code class="filename">named.conf</code> — configuration file for <span class="command"><strong>named</strong></span></p>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<div class="cmdsynopsis"><p><code class="command">named.conf</code> </p></div>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.7"></a><h2>DESCRIPTION</h2>
e6eb57e72471348376359efe9105d50bf487a312Kevin Yu<p><code class="filename">named.conf</code> is the configuration file
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner <span class="command"><strong>named</strong></span>. Statements are enclosed
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner in braces and terminated with a semi-colon. Clauses in
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner the statements are also semi-colon terminated. The usual
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner comment styles are supported:
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan C style: /* */
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner C++ style: // to end of line
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner Unix style: # to end of line
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkneracl�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulknerkey�<em class="replaceable"><code>domain_name</code></em>�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner algorithm�<em class="replaceable"><code>string</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner secret�<em class="replaceable"><code>string</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.10"></a><h2>MASTERS</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulknermasters�<em class="replaceable"><code>string</code></em>�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner (�<em class="replaceable"><code>masters</code></em>�|�<em class="replaceable"><code>ipv4_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner <em class="replaceable"><code>ipv6_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�)�[<span class="optional">�key�<em class="replaceable"><code>string</code></em>�</span>];�...<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.11"></a><h2>SERVER</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulknerserver�(�<em class="replaceable"><code>ipv4_address[<span class="optional">/prefixlen</span>]</code></em>�|�<em class="replaceable"><code>ipv6_address[<span class="optional">/prefixlen</span>]</code></em>�)�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner bogus�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner edns�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner edns-udp-size�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner max-udp-size�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner tcp-only�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner provide-ixfr�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner request-ixfr�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner keys�<em class="replaceable"><code>server_key</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner transfers�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner transfer-format�(�many-answers�|�one-answer�);<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner transfer-source�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner [<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner transfer-source-v6�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner [<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner support-ixfr�<em class="replaceable"><code>boolean</code></em>;�//�obsolete<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.12"></a><h2>TRUSTED-KEYS</h2>
753a6d457b330b1b29b2d3eefcd0831116ce950dSherry Mooretrusted-keys�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner <em class="replaceable"><code>domain_name</code></em>�<em class="replaceable"><code>flags</code></em>�<em class="replaceable"><code>protocol</code></em>�<em class="replaceable"><code>algorithm</code></em>�<em class="replaceable"><code>key</code></em>;�...<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.13"></a><h2>MANAGED-KEYS</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulknermanaged-keys�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner <em class="replaceable"><code>domain_name</code></em>�<code class="constant">initial-key</code>�<em class="replaceable"><code>flags</code></em>�<em class="replaceable"><code>protocol</code></em>�<em class="replaceable"><code>algorithm</code></em>�<em class="replaceable"><code>key</code></em>;�...<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.14"></a><h2>CONTROLS</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner inet�(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner [<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>]<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner allow�{�<em class="replaceable"><code>address_match_element</code></em>;�...�}<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner [<span class="optional">�keys�{�<em class="replaceable"><code>string</code></em>;�...�}�</span>];<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner unix�<em class="replaceable"><code>unsupported</code></em>;�//�not�implemented<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.15"></a><h2>LOGGING</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner channel�<em class="replaceable"><code>string</code></em>�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner file�<em class="replaceable"><code>log_file</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner syslog�<em class="replaceable"><code>optional_facility</code></em>;<br>
b9e7fce4cfeb0565d1bc4e65fdadbe2cb783f494Brian Utterback severity�<em class="replaceable"><code>log_severity</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner print-time�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner print-severity�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner print-category�<em class="replaceable"><code>boolean</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner category�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner listen-on�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner (�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>];�...<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner view�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>optional_class</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner search�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner ndots�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner lwres-tasks�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner lwres-clients�<em class="replaceable"><code>integer</code></em>;<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner<a name="id-1.14.17.17"></a><h2>OPTIONS</h2>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner avoid-v4-udp-ports�{�<em class="replaceable"><code>port</code></em>;�...�};<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner avoid-v6-udp-ports�{�<em class="replaceable"><code>port</code></em>;�...�};<br>
3afe87ebb25691cb6d158edaa34a6fb9b703a691Roger A. Faulkner blackhole�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
listen-on�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
listen-on-v6�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
tkey-dhkey�<em class="replaceable"><code>quoted_string</code></em>�<em class="replaceable"><code>integer</code></em>;<br>
topology�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};�//�not�implemented<br>
[<span class="optional">�class�<em class="replaceable"><code>string</code></em>�</span>]�[<span class="optional">�type�<em class="replaceable"><code>string</code></em>�</span>]<br>
[<span class="optional">�name�<em class="replaceable"><code>quoted_string</code></em>�</span>]�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>string</code></em>;�...<br>
query-source�(�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�|�[<span class="optional">�address�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�</span>]�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
query-source-v6�(�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�|�[<span class="optional">�address�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�</span>]�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
{�(�<em class="replaceable"><code>masters_list</code></em>�|�<em class="replaceable"><code>ip_addr</code></em>�[<span class="optional">port�<em class="replaceable"><code>ip_port</code></em></span>]�[<span class="optional">key�<em class="replaceable"><code>key</code></em></span>]�)�;�[<span class="optional">...</span>]�}</span>]<br>
����[<span class="optional">in-memory�<em class="replaceable"><code>yes_or_no</code></em></span>]<br>
����[<span class="optional">min-update-interval�<em class="replaceable"><code>interval</code></em></span>]<br>
suppress-initial-notify�<em class="replaceable"><code>boolean</code></em>;�//�not�yet�implemented<br>
dual-stack-servers�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
(�<em class="replaceable"><code>quoted_string</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
<em class="replaceable"><code>ipv4_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
<em class="replaceable"><code>ipv6_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�);�...<br>
root-delegation-only�[<span class="optional">�exclude�{�<em class="replaceable"><code>quoted_string</code></em>;�...�}�</span>];<br>
disable-algorithms�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
disable-ds-digests�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
dnssec-lookaside�(�<em class="replaceable"><code>auto</code></em>�|�<em class="replaceable"><code>no</code></em>�|�<em class="replaceable"><code>domain</code></em>�trust-anchor�<em class="replaceable"><code>domain</code></em>�);<br>
dnssec-must-be-secure�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>boolean</code></em>;<br>
allow-update-forwarding�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
notify-source�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
notify-source-v6�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
also-notify�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{�(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)<br>
forwarders�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>];�...<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
auto-dnssec�<code class="constant">allow</code>|<code class="constant">maintain</code>|<code class="constant">off</code>;<br>
cookie-algorithm�(�<em class="replaceable"><code>aes</code></em>�|�<em class="replaceable"><code>sha1</code></em>�|�<em class="replaceable"><code>sha256</code></em>�);<br>
}�[<span class="optional">�except-from�{�<em class="replaceable"><code>namelist</code></em>�}�</span>];<br>
}�[<span class="optional">�except-from�{�<em class="replaceable"><code>namelist</code></em>�}�</span>];<br>
allow-v6-synthesis�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};�//�obsolete<br>
view�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>optional_class</code></em>�{<br>
zone�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>optional_class</code></em>�{<br>
server�(�<em class="replaceable"><code>ipv4_address[<span class="optional">/prefixlen</span>]</code></em>�|�<em class="replaceable"><code>ipv6_address[<span class="optional">/prefixlen</span>]</code></em>�)�{<br>
<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>integer</code></em>�<em class="replaceable"><code>integer</code></em>�<em class="replaceable"><code>integer</code></em>�<em class="replaceable"><code>quoted_string</code></em>;<br>
topology�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};�//�not�implemented<br>
[<span class="optional">�class�<em class="replaceable"><code>string</code></em>�</span>]�[<span class="optional">�type�<em class="replaceable"><code>string</code></em>�</span>]<br>
[<span class="optional">�name�<em class="replaceable"><code>quoted_string</code></em>�</span>]�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>string</code></em>;�...<br>
query-source�(�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�|�[<span class="optional">�address�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�</span>]�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
query-source-v6�(�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�|�[<span class="optional">�address�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�</span>]�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
suppress-initial-notify�<em class="replaceable"><code>boolean</code></em>;�//�not�yet�implemented<br>
dual-stack-servers�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
(�<em class="replaceable"><code>quoted_string</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
<em class="replaceable"><code>ipv4_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
<em class="replaceable"><code>ipv6_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�);�...<br>
root-delegation-only�[<span class="optional">�exclude�{�<em class="replaceable"><code>quoted_string</code></em>;�...�}�</span>];<br>
disable-algorithms�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
disable-ds-digests�<em class="replaceable"><code>string</code></em>�{�<em class="replaceable"><code>string</code></em>;�...�};<br>
dnssec-lookaside�(�<em class="replaceable"><code>auto</code></em>�|�<em class="replaceable"><code>no</code></em>�|�<em class="replaceable"><code>domain</code></em>�trust-anchor�<em class="replaceable"><code>domain</code></em>�);<br>
dnssec-must-be-secure�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>boolean</code></em>;<br>
allow-update-forwarding�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
notify-source�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
notify-source-v6�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
also-notify�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{�(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)<br>
forwarders�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>];�...<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
allow-v6-synthesis�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};�//�obsolete<br>
zone�<em class="replaceable"><code>string</code></em>�<em class="replaceable"><code>optional_class</code></em>�{<br>
masters�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
<em class="replaceable"><code>ipv4_address</code></em>�[<span class="optional">port�<em class="replaceable"><code>integer</code></em></span>]�|<br>
<em class="replaceable"><code>ipv6_address</code></em>�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�)�[<span class="optional">�key�<em class="replaceable"><code>string</code></em>�</span>];�...<br>
allow-update-forwarding�{�<em class="replaceable"><code>address_match_element</code></em>;�...�};<br>
update-policy�<em class="replaceable"><code>local</code></em>�|�<em class="replaceable"><code>�{<br>
notify-source�(�<em class="replaceable"><code>ipv4_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
notify-source-v6�(�<em class="replaceable"><code>ipv6_address</code></em>�|�*�)�[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
also-notify�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{�(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)<br>
forwarders�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>]�{<br>
(�<em class="replaceable"><code>ipv4_address</code></em>�|�<em class="replaceable"><code>ipv6_address</code></em>�)�[<span class="optional">�port�<em class="replaceable"><code>integer</code></em>�</span>];�...<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>
[<span class="optional">�port�(�<em class="replaceable"><code>integer</code></em>�|�*�)�</span>];<br>