Hairpin Nat on Telus WIFI hub modem

[BriannaJoyy]

How does one turn on hairpin nat? I can not access my subdomains that are pointed at my IP from within my internal LAN.

I have the port forwarding enabled as well as a reverse proxy (Nginx Proxy Manager) running on my LAN. I can access the subdomains without issues while using cellular data.

I do not want to buy a new modem just for this feature and I don't want to have to use my DNS Server to trick my LAN clients into using Local DNS records..

Thanks

BriannaJoyy

[Nighthawk]

Telus has that disabled for all residential connections regardless of modem used. I've asked about it before when I was testing a server and was told it's a feature they don't have plans to enable. The only way to currently test any subdomain pointing at your IP, or even your IP, is through a VPN or a separate connection than your home one, like cellular as you've already found out.

[BillTelusCust]

Using an internal DNS server is normal behaviour for accessing resources that are internal.  It isn't a "trick".  It is called split DNS.