Network

Add static network routes

Static routes cannot be added via the web interface. However, you may add static routes to your Wazo by following following the steps described below. This procedure will ensure that your static routes are applied at startup (i.e. each time the network interface goes up).

1. Create the file /etc/network/if-up.d/xivo-routes:

   touch /etc/network/if-up.d/xivo-routes
   chmod 755 /etc/network/if-up.d/xivo-routes

2. Insert the following content:

   #!/bin/sh
   if [ "${IFACE}" = "<network interface>" ]; then
       ip route add <destination> via <gateway>
       ip route add <destination> via <gateway>
   fi

3. Fields <network interface>, <destination> and <gateway> should be replaced by your specific configuration. For example, if you want to add a route for 192.168.50.128/25 via 192.168.17.254 which should be added when eth0 goes up:

   #!/bin/sh
   if [ "${IFACE}" = "eth0.2" ]; then
       ip route add 192.168.50.128/25 via 192.168.17.254
   fi

Note: The above check is to ensure that the route will be applied only if the correct interface goes up. This check should contain the actual name of the interface (i.e. eth0 or eth0.2 or eth1 or ...). Otherwise the route won't be set up in every cases.

Change interface MTU

Warning: Manually changing the MTU is risky. Please only proceed if you are aware of what you are doing.

These steps describe how to change the MTU:

1. Create the file /etc/network/if-up.d/xivo-mtu:

   touch /etc/network/if-up.d/xivo-mtu chmod 755 /etc/network/if-up.d/xivo-mtu

2. Insert the following content:

    #!/bin/sh
   
    # Set MTU per iface
    if [ "${IFACE}" = "<data interface>" ]; then
        ip link set ${IFACE} mtu <data mtu>
    elif [ "${IFACE}" = "<voip interface>" ]; then
        ip link set ${IFACE} mtu <voip mtu>
    fi

3. Change the <data interface> to the name of your interface (e.g. eth0), and the <data mtu> to the new MTU (e.g. 1492),

4. Change the <voip interface> to the name of your interface (e.g. eth1), and the <voip mtu> to the new MTU (e.g. 1488)

Note: In the above example you can set a different MTU per interface. If you don't need a per-interface MTU you can simply write:

```sh
#!/bin/sh
ip link set ${IFACE} mtu <my mtu>
```