If I remember correctly, you want cascading and not passthrough.
Also, with a little work you can throw the AT&T router in a closet. The only hiccup is when you have to call to report an outage and pretend like you're rebooting their router.
Good info I'm keep that in mind when I setup pfSense so far I only need it up and running so I can proceed with next setup. As soon as performance bottlenecks I'll come back and study this. Half of it was still new to me.
Cascade is for if you have a special service provision from AT&t. Possibly static IPs, possibly something else.
IP pass through is what you use for a typical consumer connection where you just want to forward all of the ports directly to your desired router. And I use that and it works fine
I think I remember having to reboot both the AT&t box in my router a couple of times to make the IP pass through really stick. Also, I possibly had to manually assign the Mac address rather than use some sort of auto detections scheme
I would check the logs on the ASUS router to see if any traffic is coming to it.
Starting from the innermost components, where do things start to fail? Are you able to connect to your Vaultwarden server from a host machine? From another machine on the same LAN? Can you call it through your reverse proxy? From the the Internet using a public IP? Using a host name?
Surprisingly I have it up and running after rebooting the AT&T BGW320 gateway. Turned out all my setting was done correctly. All I have changed was to clear existing DHCP clients and disable onboard WiFi. Didn't think those matters and didn't understand why a gateway reboot is needed but it works now.
Thank you all for the input I can finally live a happier life now.
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