OSX VPN Add route on connection

On OSX, you can automatically add a route when the VPN is connected:

In the terminal:

sudo nano /etc/ppp/ip-up
Add the lines:

#!/bin/sh
/sbin/route add 10.0.1.0/24 -interface $1



WHERE, 

10.0.1.0/24

 is the subnet you want to route to. The $1 will automatically be populated with the correct interface name.

Add as many routes as required.

Save and exit

sudo chmod a+x /etc/ppp/ip-up



Connect to your VPN, and you route should be created.