Two routers

Hi Guys

Wondering if someone can help me setup proper configuration for the following setup ( please see drawing )

What I need to do is allow clients that are connected through WIFI to access only LAN on router 2 and Internet through Router 1
But I do now want them to access any other networks

Thanks for help in advance

Raf
rt1.PNG

You are not giving us enough information. What other networks? You are not showing any other networks. Second, what purpose does router #1 serve? at least going by your drawing, router #1 does not serve any useful purpose.

I want Router 1 to face public internet and and under eth3 put DMZ and web servers
Router 2 is more like AP and also connected to LAN that cannot be accessed from Router 1
new attachment added
rt1.PNG