Are you using Cisco AnyConnect? Here's a tidbit fromQ. How does the AnyConnect client enforce/monitor thetunnel/split-tunnel policy?A. AnyConnect enforces the tunnel policy in 2 ways:1)Route monitoring and repair (e.g. If you change the route table),AnyConnect will restore it to what was provisioned.2)Filtering (on platforms that support filter engines).
Filtering ensures that even if you could perform some sort of route injection, the filters would block the packets.Which I interpret as: Whenever you change the route from, the Cisco client resets the route to what your VPN administrator configured.Your best bet it to talk to you VPN administrator and ask them to add your route.
Route Add Mac Os 10
Mac OS X looses static routes when it is rebooted. To preserve the static route on mac we would need to create a startup script which adds your static route upon system startup. The following steps will help in achieving this.