Redirect all traffic to webserver?

Question

iptables

Condition: there is a router (OpenWRT) with a web server installed on it.
Task: redirect the traffic of all users (connected via wifi) to the web server.
How to do it?

Answer 1

That is, so that when entering any site, the user gets to your page? If so, then this should work, on port 8000 your server, instead of br-lan - wifi interface.
iptables -t nat -A PREROUTING -i br-lan -p tcp --dport 80 -j REDIRECT --to-port 8000