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Date: Fri, 19 Sep 1997 12:35:45 -0500
From: Prashant Dongre <pdongre@opentech.stpn.soft.net>
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To: Greg Lehey <grog@lemis.com>
CC: Alex Weeks <Alex_Weeks@capitalland.com>,
        "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG>
Subject: Re: I don't understand static routes afterall
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Greg Lehey wrote:

> On Thu, Sep 18, 1997 at 10:23:54AM -0500, Alex Weeks wrote:
> > Well, just about the time I thought I new what I was doing I encountered
> > the following.  If anyone feels like explaining what's going on I would be
> > interested.
> >
> > I have three subnets.  I have a FreeBSD machine routing between subnet a
> > and subnet b and another FreeBSD machine routing between subnet b and
> > subnet c.  The is necessary because the physical setup prevents one machine
> > from connecting to all three subnets.  Let's call the machine that sits
> > between a and b machine A and the machine that sits between b an c machine
> > B.
> >
> > In order to get subnet a to talk with subnet c I needed to include a static
> > route in A.  The static route should say something like "route all traffic
> > for subnet c through <hostname> on subnet b" where <hostname> physically
> > resides in machine B.
> >
> > Let me put numbers to it.
> > Subnet a is 192.1.1.0
> > Subnet b is 192.1.2.0
> > Subnet c is 192.1.3.0
> >
> > I should have been able to accomplish the above with "route add -net
> > 192.1.3.0 -interface 192.1.2.1" assuming 192.1.2.1 is the 192.1.2.0
> > interface in machine B.
> >
> > But this didn't work.  What's wierd however is that it did work to enter
> > each hostname in invididually!  I litterally typed
> > route add 192.1.3.1 192.1.2.1
> > route add 192.1.3.2 192.1.2.1
> > route add 192.1.3.3 192 1.2.1
> > etc....... for the entire subnet.  Now it's working fine.
> >
> > Have I made a glaring error?  Do I completely misunderstand subnets and
> > routing?
>
> It would be nice to see the output of netstat -r and possible netstat
> -a.
>
> Greg
>
> > In real life these are 27 bit class c subnets but that shouldn't matter for
> > the example.  I did include a "-netmask" statement in real life but it
> > wouldn't make sense for this example.
>
> Just possibly it would.  I've seen some bugs in this area when the
> tables get big.
>
> Greg

  Hi,

I faced the same problem when started using FreeBSD as router 2 years back.

Just do not run routed.

Add static routing entries in gated.conf in /etc like this.

static {
        192.168.1.0 mask 255.255.255.0 interface ix0 preference 150 ;
} ;

Prashant.