Hi :O)

I need to allow access to a new computer client which has two 3com routers working in WDS mode.
I don't remember exactly if I should add the MAC address of the new computer on the allow list of the router which is connected to the modem or to both.
As I recall I only added computers to the router which is connected to the modem, Since the other router was acting like a pass-through, But I'm not really sure.
DHCP is activated on the router which is connected to the modem while disabled on the other.
Please advise.
Thanks