d <a href=#connect><tt>connect</tt></a>. The only other
method supported by a master object is the
<a href=#close><tt>close</tt></a> method.</p>

<p class=return>
In case of success, a new master object is returned. In case of error,
<b><tt>nil</tt></b> is returned, followed by an error message.
</p>

<p class=note>
Note: The TCP object returned will have the option
"<tt>ipv6-v6only</tt>" set to <tt><b>true</b></tt>.
</p>



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