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Diffstat (limited to 'programs/tncfg/tncfg.5')
-rw-r--r-- | programs/tncfg/tncfg.5 | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/programs/tncfg/tncfg.5 b/programs/tncfg/tncfg.5 new file mode 100644 index 000000000..e4de862c6 --- /dev/null +++ b/programs/tncfg/tncfg.5 @@ -0,0 +1,109 @@ +.TH IPSEC_TNCFG 5 "27 Jun 2000" +.\" +.\" RCSID $Id: tncfg.5,v 1.1 2004/03/15 20:35:31 as Exp $ +.\" +.SH NAME +ipsec_tncfg \- lists IPSEC virtual interfaces attached to real interfaces +.SH SYNOPSIS +.B ipsec +.B tncfg +.PP +.B cat +.B /proc/net/ipsec_tncfg +.SH DESCRIPTION +.I /proc/net/ipsec_tncfg +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. +.PP +Each line lists one ipsec I/F. +A table entry consists of: +.IP + 3 +an ipsec virtual I/F name +.IP + +a visual and machine parsable separator '->', separating the virtual I/F +and the physical I/F, +.IP + +a physical I/F name, to which the ipsec virtual I/F is attached or NULL +if it is not attached, +.IP + +the keyword +.BR mtu= , +.IP + +the MTU of the ipsec virtual I/F, +.IP + +the automatically adjusted effective MTU for PMTU discovery, in brackets, +.IP + +a visual and machine parsable separator '->', separating the virtual I/F +MTU and the physical I/F MTU, +.IP + +the MTU of the attached physical I/F. +.BR +.SH EXAMPLES +.TP +.B ipsec2 -> eth3 mtu=16260(1443) -> 1500 +.LP +shows that virtual device +.B ipsec2 +with an MTU of +.B 16260 +is connected to physical device +.B eth3 +with an MTU of +.B 1500 +and that the effective MTU as a result of PMTU discovery has been +automatically set to +.BR 1443. +.TP +.B ipsec0 \-> wvlan0 mtu=1400(16260) \-> 1500 +.LP +shows that virtual device +.B ipsec0 +with an MTU of +.B 1400 +is connected to physical device +.B wvlan0 +with an MTU of +.B 1500 +and no PMTU packets have gotten far enough to bump down the effective MTU +from its default of 16260. +.TP +.B ipsec3 \-> NULL mtu=0(0) \-> 0 +.LP +shows that virtual device +.B ipsec3 +is not connected to any physical device. +.LP +.SH "FILES" +/proc/net/ipsec_tncfg, /usr/local/bin/ipsec +.SH "SEE ALSO" +ipsec(8), ipsec_manual(8), ipsec_eroute(5), ipsec_spi(5), +ipsec_spigrp(5), ipsec_klipsdebug(5), ipsec_tncfg(8), ipsec_version(5), +ipsec_pf_key(5) +.SH HISTORY +Written for the Linux FreeS/WAN project +<http://www.freeswan.org/> +by Richard Guy Briggs. +.\" +.\" $Log: tncfg.5,v $ +.\" Revision 1.1 2004/03/15 20:35:31 as +.\" added files from freeswan-2.04-x509-1.5.3 +.\" +.\" Revision 1.5 2002/04/24 07:35:41 mcr +.\" Moved from ./klips/utils/tncfg.5,v +.\" +.\" Revision 1.4 2001/05/29 05:15:53 rgb +.\" Added PMTU to output format. +.\" +.\" Revision 1.3 2000/06/30 18:21:55 rgb +.\" Update SEE ALSO sections to include ipsec_version(5) and ipsec_pf_key(5) +.\" and correct FILES sections to no longer refer to /dev/ipsec which has +.\" been removed since PF_KEY does not use it. +.\" +.\" Revision 1.2 2000/06/28 12:44:12 henry +.\" format touchup +.\" +.\" Revision 1.1 2000/06/28 05:43:01 rgb +.\" Added manpages for all 5 klips utils. +.\" +.\" |