I am using HONOR Router 3 and I want to run a VPN on it, but I haven't been able to add a VPN in any way

[muhsin]

I am using HONOR Router 3 and I want to run a VPN on it, but I haven't been able to add a VPN in any way. In the image I sent, I don't understand what I should write in the red-marked blank spaces. I kindly request your assistance, and thank you in advance.
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