CentOS - Dec 2011 - Static routes with a metric?

Hi,

How can I define static routes to be created at boot time with a specific
metric? I have two NICs that ultimately end up at the same peer, but
literally go through two completely different networks. IOW, each NIC
connects to a different layer 3 device.

Also, note that the machine actually has three total NICs: the third is the
owner of the default route. The two mentioned above are for a specialized
sub net.

What I basically need to be able to do is this:
route add -host h1 gw g1 metric 0
route add -host h1 gw g2 metric 10

Notice that everything is the same except the gateway and metric. I could
put this in /etc/rc.local, but was wondering if there's a cleaner way to do
it in e.g. the network-scripts directory.

Thanks,
Matt

On 12/7/2011 10:03 AM, Matt Garman wrote:
> Hi,
>
> [...]
>
> What I basically need to be able to do is this:
> route add -host h1 gw g1 metric 0
> route add -host h1 gw g2 metric 10
>
> Notice that everything is the same except the gateway and metric. I could
> put this in /etc/rc.local, but was wondering if there's a cleaner way
to do
> it in e.g. the network-scripts directory.
>
If you create files in the /etc/sysconfig/network-scripts directory 
named according to the scheme

route-eth0
route-eth1
route-eth2

it will execute each line in the files as

/sbin/ip route add <line>

when each interface is brought up.

Look in the /etc/sysconfig/network-scripts/ifup-routes script for all 
the gory details and features.

-- 
Benjamin Franz