How to make a welcome page when connecting to a router?

Question

Computer networks

Hello. I have a router, it is without a password, anyone can connect, I would like to make a welcome page when connecting to Wi-Fi. Well, so that when a person connects to Wi-Fi, a page opens in his browser.
I read articles, there is an example with a server + router everywhere, can this be done somehow simply in the router settings?
The router itself is ZyXel Keenetic Start

Answer 1

keenetic-firmware will not give such opportunities, because a simple user does not need this.
reflash in openwrt or others like them.
And then smoke the settings of unconfirmed clients
, for example How to make a welcome page when connecting to wi-fi?