Is it possible to asign MAC address to router ports?

Hi, I have a Asus rt-12n modem router and a netgear nighthawk r7000 router. The Asus is only used to connect to the landline and all wireless connection is via the netgear router. Is it possible to limit access on the Asus LAN ports? The only wired connection I allow is the netgear connection as I have opendns running for internet filtration since I have kids in the house.

I know there are methods to bypass the opendns but I result to manual blocking via the netgear router. So far, I am unable to filter content if the connection is wired via the Asus router. The antennas are removed and the password is secure enough that I forgot what it is.

If is possible to disable all the LAN ports except for the one to the netgear, then I would be happy. Is such a thing possible or must I buy another hardware?

Not sure if that is possible.

Also why even use the Asus if it is only being hardwired to the Netgear? If your connection speed is over 100 MB from your ISP then you are cutting your LAN speed as the Asus doesn't even have GB ethernet ports.

Doing it for content filtration not speed

Are you trying to block certain websites? Because you can do that with the R7000 alone.

This is a pretty good site to do some research.

Reading a bit seems people are having good luck flashing gargoyle firmware on their R7000.

This is a pretty good site to do some research.

Reading a bit seems people are having good luck flashing gargoyle firmware on their R7000.

Thanks for the reply. Flashing it is easy. What I want to know is if it is possible to limit access to the Asus modem router. Anyone can still bypass if they hook their machines there.

This is a pretty good site to do some research.

Reading a bit seems people are having good luck flashing gargoyle firmware on their R7000.

I have no problems with the R7000. Had done done previously. What I want to control is access to the Asus modem router.

Thanks for the reply

Still don't understand why you are using the Asus router, what you may have to use is a switch in it's place.

To answer your question, yes you can. I don't know the Asus router to give you detailed instructions but what you are looking for is "MAC address whitelist"

Edit: found a link.
ASUS Wireless Router RT-N12 - MAC Filter

Simply use: MAC Filter Mode: Accept, then add the netgear MAC address to the list. That should be it.

To answer your question, yes you can. I don't know the Asus router to give you detailed instructions but what you are looking for is "MAC address whitelist"

Edit: found a link.
ASUS Wireless Router RT-N12 - MAC Filter

Simply use: MAC Filter Mode: Accept, then add the netgear MAC address to the list. That should be it.

Thanks.

How did you get that dummy ui? I think my router is slightly different from that UI:
DSL-N12E | Networking | ASUS Global