Please add the functionality to the rest of the TP-Link routers (Mid and high-end), such as ER8411. That's good!.

Can you draw a diagram? It will help us a lot to understand your issue.

Hi, Did you consider the firewall setting? It should be configured together with the VPN.

By the way, in my case. Both sides use TP-Link. I'm not sure whether it is working under a different product.

The current version is 1.2.2. Maybe you could try the new version? . Do you have a similar spare router to try?

I think the reason these requested features have yet to be considered is the 'lack of interest or request' from the community. Unless, the majority of the community wants this 'badly', we have to...