Now I guess I started to understand...
Would you like to see these information from the router IN HOME ASSISTANT?
Why not simply run Tailscale on both your router and server, and then connect them?
Or also Googcloud
Both are native on GL-iNet routers.
Because the whole point of smart home is to have it as much as possible on local control. That is why home assistant and not something else. That is why running zigbee devices, esphome devices and cut everything else that need internet cloud to work to bare minimum.
Much easier, just connect it to your Home Assistant by the local IP.
On HA, you just need to create a view with a panel and a single webpage (iframe) card on.