I have a router provided by my ISP physically connected to the internet access point. It has basic security (WPA2-PSK) and broadcasts its SSID.
I have a second router bridged wirelessly to the first to access the internet. It has hidden SSIDs, MAC filtering (as well as WPA2-PSK) and the latest firmware. One of the allowed MACs is that of the ISP host router. It has the ability to configure firewall rules but I don't know what rules (if any) I would need to configure.
Is the ISP host router considered the weak link? If I connect to the bridged router in order to access the internet will I benefit from this extra security?
I am trying to mitigate wireless attacks and internet attacks. I was considering attaching a NAS (with no sensitive data) to this router. The basic router cannot use MAC filtering.