strongswan/doc/manpage.d/ipsec_tncfg.5.html

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<HTML><HEAD><TITLE>Manpage of IPSEC_TNCFG</TITLE>
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<H1>IPSEC_TNCFG</H1>
Section: File Formats (5)<BR>Updated: 27 Jun 2000<BR><A HREF="#index">Index</A>
<A HREF="http://localhost/cgi-bin/man/man2html">Return to Main Contents</A><HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
ipsec_tncfg - lists IPSEC virtual interfaces attached to real interfaces
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<B>ipsec</B>
<B>tncfg</B>
<P>
<B>cat</B>
<B>/proc/net/ipsec_tncfg</B>
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
<I>/proc/net/ipsec_tncfg</I>
is a read-only file which lists which IPSEC virtual interfaces are
attached to which real interfaces, through which packets will be
forwarded once processed by IPSEC.
<P>
Each line lists one ipsec I/F.
A table entry consists of:
<DL COMPACT>
<DT>+<DD>
an ipsec virtual I/F name
<DT>+<DD>
a visual and machine parsable separator '-&gt;', separating the virtual I/F
and the physical I/F,
<DT>+<DD>
a physical I/F name, to which the ipsec virtual I/F is attached or NULL
if it is not attached,
<DT>+<DD>
the keyword
<B>mtu=</B>,
<DT>+<DD>
the MTU of the ipsec virtual I/F,
<DT>+<DD>
the automatically adjusted effective MTU for PMTU discovery, in brackets,
<DT>+<DD>
a visual and machine parsable separator '-&gt;', separating the virtual I/F
MTU and the physical I/F MTU,
<DT>+<DD>
the MTU of the attached physical I/F.
<B>.SH</B>EXAMPLES
<DT><B>ipsec2 -&gt; eth3 mtu=16260(1443) -&gt; 1500</B>
<DD>
</DL>
<P>
shows that virtual device
<B>ipsec2</B>
with an MTU of
<B>16260</B>
is connected to physical device
<B>eth3</B>
with an MTU of
<B>1500</B>
and that the effective MTU as a result of PMTU discovery has been
automatically set to
<B>1443.</B>
<DL COMPACT>
<DT><B>ipsec0 -&gt; wvlan0 mtu=1400(16260) -&gt; 1500</B>
<DD>
</DL>
<P>
shows that virtual device
<B>ipsec0</B>
with an MTU of
<B>1400</B>
is connected to physical device
<B>wvlan0</B>
with an MTU of
<B>1500</B>
and no PMTU packets have gotten far enough to bump down the effective MTU
from its default of 16260.
<DL COMPACT>
<DT><B>ipsec3 -&gt; NULL mtu=0(0) -&gt; 0</B>
<DD>
</DL>
<P>
shows that virtual device
<B>ipsec3</B>
is not connected to any physical device.
<P>
<A NAME="lbAE">&nbsp;</A>
<H2>FILES</H2>
/proc/net/ipsec_tncfg, /usr/local/bin/ipsec
<A NAME="lbAF">&nbsp;</A>
<H2>SEE ALSO</H2>
<A HREF="ipsec.8.html">ipsec</A>(8), <A HREF="ipsec_manual.8.html">ipsec_manual</A>(8), <A HREF="ipsec_eroute.5.html">ipsec_eroute</A>(5), <A HREF="ipsec_spi.5.html">ipsec_spi</A>(5),
<A HREF="ipsec_spigrp.5.html">ipsec_spigrp</A>(5), <A HREF="ipsec_klipsdebug.5.html">ipsec_klipsdebug</A>(5), <A HREF="ipsec_tncfg.8.html">ipsec_tncfg</A>(8), <A HREF="ipsec_version.5.html">ipsec_version</A>(5),
<A HREF="ipsec_pf_key.5.html">ipsec_pf_key</A>(5)
<A NAME="lbAG">&nbsp;</A>
<H2>HISTORY</H2>
Written for the Linux FreeS/WAN project
&lt;<A HREF="http://www.freeswan.org/">http://www.freeswan.org/</A>&gt;
by Richard Guy Briggs.
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT><A HREF="#lbAB">NAME</A><DD>
<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT><A HREF="#lbAE">FILES</A><DD>
<DT><A HREF="#lbAF">SEE ALSO</A><DD>
<DT><A HREF="#lbAG">HISTORY</A><DD>
</DL>
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Time: 21:40:18 GMT, November 11, 2003
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