Rockus support

[Rdods]

Dear,

I moved in to a Lennar house that are equipped with Rockus ICX-7150-c12p.

my internet provider is att fiber with the new white modem.

i need to know where do I connect the ethernet cable from modem to rockus swith.

second, in my house I have two devices in the ceeling. One downstairs and second upstairs.

those decices works as wifi extender?

if yes, do I need to set up an wifi name and password for that or, they will replicate my wifi using the modem wifi name and password?