Re: Static Routes via DHCP - How to do?

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On Wed, 26 Jan 2005 15:24:30 +0000, Paul Howarth <paul@xxxxxxxxxxxx> wrote:
> Roger Grosswiler wrote:
> > Paul Howarth wrote:
> >> You'd probably want this then:
> >>
> >> option static-route 192.168.1.0 10.0.0.3,
> >>             192.168.2.0 10.0.0.3,
> >>             192.168.3.0 10.0.0.3;
> >>
> >> However, it probably won't work; if you look at
> >> http://www.gsp.com/cgi-bin/man.cgi?section=5&topic=dhcp-options it says:
> >>
> >>   Also, please note that this option is not intended for classless IP
> >>   routing - it does not include a subnet mask. Since classless IP
> >>   routing is now the most widely deployed routing standard, this option
> >>   is virtually useless, and is not implemented by any of the popular
> >>   DHCP clients, for example the Microsoft DHCP client.
> > 
> > thats exactly what i tried before, but it even did not work on fedora
> > core. This will mean, i have to make some kind of hack the get the
> > routing fixed in the routing table. I'm gonna write a very little
> > shell-script and let it execute on boot-up. I think, on windoze i can
> > indicate them also as fixed route per client. :-( It would have been
> > luxury...
> 
> You don't need to script this on linux. Assuming you've only got one NIC
> on your clients (eth0), create a file on each client called
> /etc/sysconfig/network-scripts/route-eth0 that contains the following:
> 
> 192.168.1.0/24 via 10.0.0.3
> 192.168.2.0/24 via 10.0.0.3
> 192.168.3.0/24 via 10.0.0.3
> 
> That should have the desired effect.
> 
> Paul.


If there is only one NIC on the clients, and if the default gateway is
at 10.0.0.3, then how is this any different than setting 10.0.0.3 to
the default gw?


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