#At&t router configuration code
#At&t router configuration mac

There is a way to bypass the ATT Gateway all together and get a nearly direct connection to the ONT without having to use the ATT router. Couldn't be happier with it at this point.ДЄgain, it may look a little different than my modem, and if so, just Google your modem model and IP Passthrough. The modem is no longer broadcasting any wireless SSIDs and I no longer had the dreaded double NAT. The modem is simply passing the IP address to the Alien and the Alien is managing all IP address assignments. Once I did all that, everything worked exactly like I wanted. The IP Passthrough is essentially bypassing that anyway, so don't worry about that. I had to completely reset the modem back to original config and go through the above steps again, but I left the DHCP server enabled on the modem. You may see the setting to disable DCHP Server in the modem itself, but now that I'm looking at this all again, I remember that once I did this it screwed up everything else. Basically just disable the Home and Guest SSIDs. Lastly, this is the time that I disabled all the wifi radios and SSIDs in the modem settings under 'Home Network' -> 'Wi-Fi'.

Next I went to 'Firewall' -> 'Packet Filter' in the modem settings and disabled all packet filter rules. Next I went to 'Firewall' -> 'Firewall Advanced' in the modem settings and disabled or enabled the firewall features I wanted the modem to handle. After you save the above settings, you will probably have to power cycle the modem and the Alien to get the new IP assignments and passthrough. Passthrough DHCP Lease I set this to 10 minutesДoing the above basically puts the modem into bridge mode where it will always pass the WAN IP address to the Alien router.

#At&t router configuration mac

Passthrough fixed MAC address is set to the Alien router in the dropdown list, or you can manually input the Alien routers MAC address Passthrough Mode is set to 'DHCPS-fixed' Default Server Internal Address does not need to be set, so leave this blank Allocation Mode is set to 'Passthrough'

There's 5 settings on the IP Passthrough settings page. Once I accessed the settings site/page, I went to 'Firewall' -> 'IP Passthrough' If you can't find this on the modem itself, Google the modem model and try to find the access info that way.

#At&t router configuration code

It should also include the access code or default login creds. The IP address to access this should be on a sticker on the modem somewhere. Sign into the modem advanced configuration page. This essentially puts the modem/router into bridge mode.

Essentially you have to enable IP Passthrough from the modem to your Alien. It has been a while since I set this up, so I had to go look around to see exactly what I did. Even so, they all should have a very similar, if not the same, backend settings for AT&T. I'm assuming they've changed the modems/routers they're using because mine is the Arris BGW-210, not Pace. I got my AT&T fiber installed back when it was first available in my neighborhood, which was back in 2016/2017.