- We already discussed the <literal>host</literal> option. The
- <literal>port</literal> option allows you to specify which port
- number the server uses. The usage of <literal>type</literal>,
- <literal>secret</literal>, <literal>tls</literal>,
- <literal>certificateNameCheck</literal>,
+
+ We already discussed the <literal>host</literal> option. To
+ specify how radsecproxy should resolve a <literal>host</literal>
+ given as a DNS name, the <literal>IPv4Only</literal> or the
+ <literal>IPv6Only</literal> can be set to <literal>on</literal>.
+ At most one of these options can be enabled. Enabling
+ <literal>IPv4Only</literal> or <literal>IPv6Only</literal> here
+ overrides any basic settings set at the top level.
+
+ The <literal>port</literal> option allows you to specify which
+ port number the server uses. The usage of
+ <literal>type</literal>, <literal>secret</literal>,
+ <literal>tls</literal>, <literal>certificateNameCheck</literal>,