How to enable IP Passthrough on ATT BGW320

If you have AT&T Gigabit fiber internet, and use your own router or firewall, you may want to eliminate the double-NAT, and assign your router a public IP address. Login to the BGW320-505 modem by going to the IP address printed on the modem (192.168.1.254) Go to Firewall > IP Passthrough > Set Allocation Mode to Passthrough

To enable IP Passthrough on an AT&T BGW320-505 modem, follow these steps: 1. Access the modem's configuration page using a web browser on a device connected dir
Enabling IP Passthrough (Bypass Mode) on AT&T Gateways

AT&T residential and business gateways (such as the BGW320 -500, BGW320-505 , and the older BGW210) do not offer a true bridge mode. The gateway cannot be fully removed from the path. Instead, AT&T provides IP Passthrough , which hands the gateway's public WAN IP address to one device on the LAN (your router).
As of Feb 2026 I am an AT&T subscriber and they provided a BGW320-505 as the gateway device. I already have a robust ASUS router set up with the features I want and I want to use the BGW320-505 as the gateway only. Here's my working configuration for those who might be curious: Home Network ->...

How To Set Up AT&T BGW320 IP Passthrough
Want to enable IP Passthrough on your AT&T BGW320 gateway? In this step-by-step tutorial, you'll learn how to configure IP Passthrough so you can use your own router while keeping the BGW320 as ...
Learn how to enable IP Passthrough on the AT&T BGW320 gateway, configure the required network settings, and complete the setup successfully.

AT&T Router Login & Setup (BGW320, BGW210)
How to log in to your AT&T gateway at 192.168.1.254, find the Device Access Code, change Wi-Fi settings, and enable IP Passthrough . Step-by-step for BGW320 and BGW210.
A step-by-step guide to configure your AT&T Fiber gateway in IP Passthrough mode to use your own router and avoid double NAT.

Enabling IP Passthrough on the Arris BGW320
The below information provides general instructions on how to configure the Arris BGW320 Internet Gateway for IP Passthrough mode, an effective equivalent to a bridge mode configuration.
.jpg)





:max_bytes(150000):strip_icc()/3-5abcf226fa6bcc0036668782.png)
⭐DON'T CLICK THIS: https://bit.ly/3v3K6Kr In this video I show you an AT&T BGW320 IP Passthrough Setup Guide.