ng authentications are more difficult to detect from an attacker's point of view. However, the security provided by this technique is often weaker than in SPA.
</DL>

<A NAME="lbAG">&nbsp;</A>
<H2>SINGLE PACKET AUTHORIZATION</H2>

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<B>-K </B><B></B><I>address</I>, <B>--spa-ip </B><B></B><I>address</I> (Set authorized address)
<DL COMPACT><DT><DD>
This option sets the authorized address. This is, the address that will be allowed access to the remote port upon successful authentication. The address c