Solaris[edit]

Solaris 10 Update 3 and Later[edit]

From Solaris 10 Update 3 these is in built support for storing static routes. To add a route persistently add a '-p' switch when specifying the route, this will make the route active and persistent across reboots.

'route -p add -net 192.168.24.0/24 10.10.10.1'

This will be saved in /etc/inet/static_routes eg:

# File generated by route(1M) - do not edit.
-net 192.168.128.0/22 192.168.136.1
-net 192.168.138.0/24 192.168.136.1
-net 172.31.68.0/24 192.168.149.253
-net 172.31.69.0/24 192.168.149.253

To delete a route and remove it from static_routes do:

'route -p delete -net ....'

Solaris 10 Update 2 and Earlier[edit]

Solaris 10u2 and earlier don't have support for static routes.

Using the old S99static trick doesn't work as the rc2 scripts won't run if the system doesn't reach milestone/multiuser which can happen if a service (such as rpcbind) fails to start.

As such a new SMF service is required.

Put this in /var/svc/manifest/network/RKstatic-routes.xml:-

<?xml version="1.0"?>
<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">
<!--
        Static Route SMF Manefest

        To be replaced by official Sun mechanism in next solaris release

-->
<service_bundle type='manifest' name='RKstatic-routes'>

<service
  name='network/RKstatic-routes'
  type='service'

  version='1'>
    <create_default_instance enabled='true' />

    <single_instance/>
    <dependency name='network'
        grouping='require_any'
        restart_on='error'
        type='service'>
            <service_fmri value='svc:/network/service' />
    </dependency>


  <exec_method
    type='method'
    name='start'

    exec='/lib/svc/method/RKstatic-routes start'

    timeout_seconds='60' />

  <exec_method

    type='method'
    name='stop'
    exec='/lib/svc/method/RKstatic-routes stop'

    timeout_seconds='60' />

  <property_group name='startd' type='framework'>

    <propval name='duration' type='astring' value='transient' />

  </property_group>

  <stability value='Unstable' />

</service>
</service_bundle>

Then create the following (with modifications obv) at /lib/svc/method/RKstatic-routes:-

#!/bin/sh

# RKstatic-routes

# To be called by the network/RKstatic-route SMF service

ACTION=${ACTION:-add}

setup_routes () {


#Route to networks.
/usr/sbin/route $ACTION net 172.1.0.0 -netmask 255.255.0.0 10.1.0.0
/usr/sbin/route $ACTION net 172.2.0.0 -netmask 255.255.0.0 10.2.0.0

}

case "$1" in
    start)
        echo "${ACTION}ing static routes"
        setup_routes
        ;;
    stop)
        ACTION=delete
        echo "${ACTION}ing static routes"
        setup_routes
        ;;
    *)
        echo "Usage: $0 {start|stop}"
        exit 1
esac

Then import the service:-

svccfg -v import /var/svc/manifest/network/RKstatic-routes.xml

Then you can enable and start the service with:-

svcadm enable network/RKstatic-routes

And remove the routes and disable the service with:-

svcadm disable network/RKstatic-routes

Enabling or disabling the routes with this method will persist across reboots.

Solaris 9 and earlier[edit]

Adding static routes required some fiddling:

In general people just made a rc script to add the routes:

RC script to add routes[edit]

this typical script is not quite right but it works verry well... ($type $route and $gateway and only two values in the routes.conf)

ln -s /etc/rc2.d/S70staticRoutes /etc/init.d/staticRoutes.sh

cat staticRoutes.sh
#!/bin/sh

case "$1" in
 
        start)
                test -f /etc/routes.conf || exit 0
                while read type route gateway
                do
                        /usr/sbin/route add $type $route $gateway
                done < /etc/routes.conf
                ;;

        stop)
                test -f /etc/routes.conf || exit 0
                while read type route gateway
                do
                        /usr/sbin/route delete $type $route $gateway
                done < /etc/routes.conf
                ;;

        *)
                echo "Usage: /etc/init.d/routes { start | stop }"
                ;;

esac

routes.conf[edit]

#cat /etc/routes.conf
172.1.2.0/24 172.1.2.4
172.1.3.0/24 172.1.3.4

But to be clean on Solaris 8, 9 and 10 you can add your static routes at /etc/gateways like this:

net 100.100.100.0 gateway 192.1.243.1 metric 1

Redhat[edit]

RHEL 4[edit]

To add a persistent static route, create the following file for each ethX device.

/etc/sysconfig/network-scripts/route-ethX

Every entry or a route has three lines as follows:

GATEWAY<N>=xxx.xxx.xxx.xxx
NETMASK<N>=yyy.yyy.yyy.yyy
ADDRESS<N>=zzz.zzz.zzz.zzz

As the names implies, they are the gateway IP, Netmask and the IP/Network Address.

Note the <N> next to each of the three entities. This number defines the route entry number and should be the same on all the entities.

Example:

GATEWAY0=192.168.1.1
NETMASK0=255.255.255.0
ADDRESS0=10.10.10.0

GATEWAY1=192.168.1.1
NETMASK1=255.255.255.0
ADDRESS1=20.20.20.2

Restart the network.

To dynamically add a route execute the following command:

# ip route add <Net/IP>/Netmask> via <Gateway IP> dev <InterfaceX>

Example:

# ip route add 10.10.10.0/24 via 192.168.1.1 dev eth0

Confirm with following command:

# ip route show

Static Routes

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