Custom DDNS + OpenVPN Client get VPN IP

[amoney]

HI All

Router: RT-AC88U, Firmware: 384.9

I followed the guide here to get custom ddns working. Under DDNS settings the method to retrieve ip is set to internal. Now that i have enabled openvpn client tunnel i would like to have the ddns be updated with the VPN ip. I see the example on the page above on how to get the VPN IP but thats not working for me. Issue i am running into is that the wget/curl command on the router is not going through the vpn tunnel.

curl --interface tun11 http://ipv4.icanhazip.com/ -> returns the VPN IP
curl http://ipv4.icanhazip.com/ -> returns the ISP IP.

Under rules for routing for my VPN i have

Source IP: 192.168.1.0/24 Destination IP: 0.0.0.0 configured to use VPN.

I have confirmed my devices are connected to vpn so the tunnel is working.

So i was curious is it expected that the wget/curl commands on the router will not go through the tunnel or there is something wrong in my setup?

Also once its working do i then remove the ddns-start script and setup ddns only with the openvpn-event script? Or do i have them both running?

 

[amoney]

Interesting issue now. I did a recovery of my router to start with a clean setup and now when i have vpn client running i am not able to issue a ping call from the router it self.

 

[amoney]

So i tried adding a policy rule 192.168.1.1 -> 0.0.0.0 -> VPN and traffic from router still goes through the wan.

So my policy rules are
192.168.1.0/24 -> VPN
192.168.1.1 -> VPN

Is this expected? Technically i should only need the first policy rule right? But the router traffic still goes through the wan. So wondering if i am doing something wrong.