Date: Thu, 12 Feb 1998 09:49:34 -0600 (CST) From: Jeff Lynch <jeff@mercury.jorsm.com> To: freebsd-isp@FreeBSD.ORG Subject: Re: FreeBSD firewall questions Message-ID: <Pine.BSF.3.95q.980212094130.11995E-100000@mercury.jorsm.com> In-Reply-To: <Pine.BSF.3.95q.980212091106.11372A-100000@federation.addy.com>
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On Thu, 12 Feb 1998, Cliff Addy wrote:
> The firewall machine is named odo, the router is wormhole, and my test
> server is tribble. All I did (in the brief experiment I tried) was to tell
> odo his default route is wormhole. Then I changed tribble's default route
> from wormhole to odo. Now, running a traceroute to freebsd.org, I get
[snip]
>
> My one concern is: what if odo dies? Can I set up the other FreeBSD
> machines to "fallback" to wormhole if odo cannot be contacted?
On tribble from cron:
#!/bin/sh
loss=` /sbin/ping -c2 -q mercury | grep "packet loss" | awk '{print $7}' |
tr -d '%'`
if [ $loss -gt 0 ]
then
route delete wormhole
route add default 206.181.190.29
fi
Putting the routing back in when wormhole comes back is left as
an exercise to the reader.
=========================================================================
Jeffrey A. Lynch, President JORSM Internet
email: jeff@jorsm.com Northwest Indiana's Full-Service Provider
Voice: (219)322-2180 927 Sheffield Avenue, Dyer, IN 46311
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