IP address), <b>dirName</b> (a distinguished name), and <b>otherName</b>. The syntax of each is described in the following paragraphs.</p>

<p>The <b>email</b> option has two special values. <code>copy</code> will automatically include any email addresses contained in the certificate subject name in the extension. <code>move</code> will automatically move any email addresses from the certificate subject name to the extension.</p>

<p>The IP address used in the <b>IP</b> option can be in either IPv4 or IPv6 