I have a home network with the current setup (RJ45 running from main router to access point) :

     +-------------+               +--------------+
     | 192.168.2.1 |               |192.168.2.2   |
     |  router     +--------------->access point 1|
     +-----^-------+               +--------------+
           |
           |
     +-----+--------+
     | 192.168.1.1  |
     |   modem      |
     +-----^--------+
           |
           |
           |
           |
        +--+--+
        | ISP |
        +-----+

However I would like to extend the network to two more floors in the house via the existing Access Point (router is too far and not reachable using a network cable, hence I need to extend using current access point). Please see diagram below :

     +-------------+               +--------------+          +----------------+
     | 192.168.2.1 |               |192.168.2.2   |          |   192.168.2.3  |
     |  router     +--------------->access point 1+----------> access point 2 |
     +-----^-------+               +--------+-----+          +----------------+
           |                                |
           |                                |
     +-----+--------+                       |
     | 192.168.1.1  |                       |
     |   modem      |                       |
     +-----^--------+                       |                +----------------+
           |                                +---------------->   192.168.2.4  |
           |                                                 | access point 3 |
           |                                                 +----------------+
           |
        +--+--+
        | ISP |
        +-----+

• Q1 : is this setup possible?
• Q2 : if possible, will I have to do anything different from what I did to setup access point 1?

edit 1 : I am trying to study the dd-wrt documentation to see which would be the correct mode of operation for me Linking Routers but Im confused because I dont see any info on how to use an existing Access point to extend the signal of the SSID. If anyone could point me to the correct wiki for how I should setup AP2 and AP3 based on AP1, it would be very helpful.

For AP1, I did the following

• Use static IP and setup same SSID as primary wireless router
• use same security as primary wireless router
• make AP1 point to 192.168.2.1 (primary router) for DHCP

Thanks in advance.