Links inside the HTML versions of man pages use <LINK> for links:
<dt><span class="term"><a name="ALLOWHOSTS"></a>allow hosts (S)
</span></dt><dd><p>Synonym for <link linkend="HOSTSALLOW">.</p></dd><dt>
However, <LINK> is not meant for this usage (http://www.w3.
Although LINK has no content, it conveys relationship information that *may* be
rendered by user agents in a variety of ways (e.g., a tool-bar with a drop-down
menu of links).
IMHO there is an <A HREF="HOSTSALLOW"> missing here.
This was a bug in the html generation.
It has already been fixed in the CVS tree,
we just need to fix the build environment
an propagate the changes.
Closing it as fixed.