OpenVPN / Transmission & Internet Kill Switch

[matlock]

Hey everyone - i may be looking at this from the wrong angle, but hopefully this discussion thread will guide me (us) down the right path.

SO... the setup...
I have a DDWRT router, with IPVanish/OpenVPN configured at the router.
I have policy base routing configured so that only specified IP Address traffic is sent through the VPN tunnel.

I have a static address configured for my transmission plugin, this address, is configured to utilize the VPN.

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I recently came across a feature available from other VPN services, "internet kill switch", that when your IP address changes, your network connection stops - so that if the VPN service goes down, you do not auto reconnect through your ISP exposing you.

All of this said, i'm interested in a method of monitoring Transmissions 'public' ip address so that if it changes, the plugin stops.

Anyone have thoughts on how to accomplish this ?

Thanks for the input.

Matlock

 

[dlavigne]

Did you find a solution for this?

 

[matlock]

I did just fine a solution, but the solution was not a configuration within Freenas.

I had created a firewall rule on my router -
iptables -I FORWARD -s IPADDRESS -o $(nvram get wan_iface) -j DROP