Question

Hi everyone, I need help with routing. I am connecting to a service provider via VPN on a site-to-site configuration.

I am connecting to a service provider via VPN and it is required to route as: Provider IP<->VPN<->Host. I have setup a droplet and configured it with strongswan to setup the ipsec VPN and it is working. However, I need to route all traffic to the provider IP via my VPN gateway for encryption and tunneling to Provider. I am not sure what I am doing wrong but when I try adding a static route between my host and my VPN droplet, it returns the following error: SIOCADDRT: Network is unreachable. The PROVIDER IP network is configured to not respond to pings and probes, but still, my VPN Gateway is reachable. All help is highly appreciated

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Hello,

I will recommend starting with this tutorial on how to setup IKEv2 VPN Server with StrongSwan:

https://www.digitalocean.com/community/tutorials/how-to-set-up-an-ikev2-vpn-server-with-strongswan-on-ubuntu-18-04-2