Date: Sat, 01 Sep 2007 13:53:37 +1200 From: Hinkie <Hinkie@paradise.net.nz> To: Hinkie <Hinkie@paradise.net.nz>, freebsd-questions@FreeBSD.ORG Subject: Re: FreeBSD Cron Job to run (ifconfig em0 down; ifconfig em0 up) Message-ID: <033a01c7ec3a$ea145d90$1e00a8c0@cheqsoft.local>
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Dear People
As a courtesy to anyone interested I have finally sovled this (I hope), =
this is what I did, this is on a FreeBSD pfSense firewall router.
Essentially the fix is to ping the static IP's first hop, if this is =
down then flick the WAN NIC state down and up, this restores=20
the lost connection where the Motorola 5101 has stopped sending packets =
(presumably for some incompatibility reason) The Motorola=20
5101 has today been replaced with a 5100, the ISP tell me most =
commercial lines are running the 5100 as they say it is more router=20
compatible than the newer 5101. I'll advise if the 5100 exhibits the =
same behaviour(!) however if it does the following should=20
address it within a minute. If you are copying it be sure to copy it =
exactly as spaces in the wrong place stuff it up....etc!!
For both the lists and my record it is done by:
=3D> in /etc/crontab add
*/1 * * * * root /usr/bin/pinger.sh
=3D> from edit.php create / write into new file /usr/bin/pinger.sh
#!/bin/sh
ping -c1 Insert_1st_Gateway_Hop_Here_commonly_Static_IP_a.b.c.1
if [ $? -eq 2 ]; then
ifconfig em0 down
ifconfig em0 up
echo 'Gateway Down'
else
echo 'Gateway Up'
fi
=3D> from exec.php run chmod u+x /usr/bin/pinger.sh
=3D> from exec.php run ls -l /usr/bin/pinger.sh
and check there is an x in the file permissions (for executable)
It will have run when you see a log series of commands starting with
Sep 1 11:32:13 kernel: em0: link state changed to UP
Sep 1 11:32:11 kernel: em0: link state changed to DOWN
The only problem I see with this approach is that whenever the Internet =
is down for whatever reason the WAN interface is going to be=20
disconnected and reconnected every minute, as well as filling the logs =
with this info, but that seems only of concern from the=20
perspective of filling the log with rubbish. I might tinker with it to =
send me an email to advise me when the code has also run .
Thank you again to the people who worked with me on this.
Kind regards
David Hingston=20
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