How to add a static route on OSX

I’ve just had this one with a pptp vpn – one network was accessible over it but another behind it wasnt so I had to add a static route.

First you need to know the remote ip address of the vpn connection:

sabrina:table peter$ ifconfig ppp0
ppp0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1444
 inet 192.168.1.3 --> 192.168.1.1 netmask 0xffffff00

Here the address we want is the first one, 192.168.1.3

Now to create the route

sabrina:table peter$ sudo route add -net 192l168.2.0/24 192.168.1.3
Password:
add net 192.168.2.0: gateway 192.168.1.3

Thats it, now that route will work as long as the vpn connection stays up. When you disconnect it will then be removed & you’ll have to add it again later.

Author: petermount1

Prolific Open Source developer who also works in the online gaming industry during the day. Develops in Java, Go, Python & any other language as necessary. Still develops on retro machines like BBC Micro & Amiga A1200 View all posts by petermount1