12-30-2014
Best tool to monitor VPN IPSEC Tunneling
We are using cyberoam device, VPN IPSEC tunnel is going of frequently even the traffic is throug.
Please suggest what may be the cause for the above mentioned issue.
Also suggest a best tool to monitor the same VPN IPSEC tunnel connectivity.
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LEARN ABOUT X11R4
ipsec_klipsdebug
IPSEC_KLIPSDEBUG(8) [FIXME: manual] IPSEC_KLIPSDEBUG(8)
NAME
ipsec_klipsdebug - set KLIPS and MAST debug features and level. Other stacks are not supported.
SYNOPSIS
ipsec klipsdebug
ipsec klipsdebug --set flagname
ipsec klipsdebug --clear flagname
ipsec klipsdebug --all
ipsec klipsdebug --none
ipsec klipsdebug --help
ipsec klipsdebug --version
DESCRIPTION
Klipsdebug sets and clears flags that control various parts of the debugging output of Klips (the kernel portion of FreeS/WAN IPSEC). The
form with no additional arguments lists the present contents of /proc/net/ipsec_klipsdebug. The --set form turns the specified flag on,
while the --clear form turns the specified flag off. The --all form turns all flags on except verbose, while the --none form turns all
flags off.
The current flag names are:
tunnel
tunnelling code
tunnel-xmit
tunnelling transmit only code
pfkey
userspace communication code
xform
transform selection and manipulation code
eroute
eroute table manipulation code
spi
SA table manipulation code
radij
radij tree manipulation code
esp
encryptions transforms code
ah
authentication transforms code rcv receive code
ipcomp
ip compression transforms code
verbose
give even more information, BEWARE: a)this will print authentication and encryption keys in the logs b)this will probably trample the
4k kernel printk buffer giving inaccurate output
All Klips debug output appears as kernel.info messages to syslogd(8). Most systems are set up to log these messages to /var/log/messages.
Beware that klipsdebug --all produces a lot of output and the log file will grow quickly.
The file format for /proc/net/ipsec_klipsdebug is discussed in ipsec_klipsdebug(5).
EXAMPLES
klipsdebug --all
turns on all KLIPS debugging except verbose.
klipsdebug --clear tunnel
turns off only the tunnel debugging messages.
FILES
/proc/net/ipsec_klipsdebug, /usr/local/bin/ipsec
SEE ALSO
ipsec(8), ipsec_manual(8), ipsec_tncfg(8), ipsec_eroute(8), ipsec_spi(8), ipsec_spigrp(8), ipsec_klipsdebug(5)
HISTORY
Written for the Linux FreeS/WAN project <http://www.freeswan.org/> by Richard Guy Briggs.
BUGS
It really ought to be possible to set or unset selective combinations of flags.
[FIXME: source] 10/06/2010 IPSEC_KLIPSDEBUG(8)