<listitem>
<para>Takes one of <literal>ipv4</literal>, <literal>ipv6</literal>,
<literal>both</literal>, <literal>none</literal>. When <literal>ipv4</literal>,
- performs IPv4 Duplicate Address Detection. See
- <ulink url="https://tools.ietf.org/html/rfc5227">RFC 5224</ulink>.
+ performs IPv4 Address Conflict Detection. See
+ <ulink url="https://tools.ietf.org/html/rfc5227">RFC 5227</ulink>.
When <literal>ipv6</literal>, performs IPv6 Duplicate Address Detection. See
<ulink url="https://tools.ietf.org/html/rfc4862">RFC 4862</ulink>.
Defaults to <literal>ipv6</literal>.</para>