How to configure dd-wrt under bridge LAN+WLAN?

Question

Computer networks

There is a Dlink DIR-632 router with dd-wrt firmware.
A cable coming from another / main router (TP-LINK) is connected to the WAN port of this router.
What needs to be configured in the dd-wrt firmware so that this router works like a switch, i.e. connected cables to the LAN port received an IP address from the main TP-LINK router? And so that clients connected to Wi-Fi on dd-wrt also receive IP from the main router?
I randomly poked into the settings according to the instructions on the network, the maximum that turned out was the first option (the cable plugged into the second router received the ip / network from the first), but I can’t figure it out with Wi-Fi, either the ip is not issued at all, or the network disappears, or the subnet creates its own which is not visible from the main network.
Thank you!

Answer 1

1. Выключить DHCP
2. Поместить в туже подсеть что и основной роутер (Например если адрес основного 192.168.1.1 то адрес должен быть 192.168.1.х ).
3. Подключать все кабеля в LAN порты (включая кабель от 1го роутера).
4. Не забывать что dd-wrt может работать не стабильно на некоторых роутерах. Для вышепоставленой цели она не нужна.

Answer 2

1. Put a static IP in the 2nd router on the same subnet as the main router.
2. in the settings of the 2nd router in DHCP, enter DHCP Forwarder and enter the IP 1 of the router
3. WIFI setting. go to wireless. select mode-client bridge(routed)
4.wireless network name (SSID) write the same name as on 1 router-network name.
5. save and check)