Open up PPP and select L2TP Server. Set it to Enabled, set IPsec to yes, and set the IPsec secret.
![](https://www.incredigeek.com/home/wp-content/uploads/2020/03/image.png)
Next go to PPP -> Profiles and modify the default-encryption one. You can setup an IP Pool to use for the VPN clients when they connect.
![](https://www.incredigeek.com/home/wp-content/uploads/2020/03/image-1.png)
Next go to the PPP -> Secrets and configure the user to connect.
![](https://www.incredigeek.com/home/wp-content/uploads/2020/03/image-2.png)
Setup your VPN client and connect.
![](https://www.incredigeek.com/home/wp-content/uploads/2020/03/image-3.png)