On the secondary router, set up the VPN client (OpenVPN, WireGuard) using your commercial VPN provider’s configuration files. Then, connect the secondary router to the internet via PPPoE using your ISP credentials.
: Use the admin credentials located on the sticker at the bottom of the device. HUAWEI Global Option 1: Configuring as a VPN Client Configure VPN on HUAWEI HG8245H
Before diving into the "how-to," it is critical to understand what this router can and cannot do. On the secondary router, set up the VPN