If you have created the port-forward of TCP 8123 on your router's public interface to TCP 8123 on your internal Home Assistant IP (say 192.168.1.4), your Home Assistant is now available on the web. ) that is supported to be updated via your router to always point to your public address. If you're impacted please see the CG-NAT and IPv6 addendum.įor dynamic, public IP addresses the solution is simple: Typically users choose a dynamic dns service such as which will create a unique name (e.g. If your ISP says they use Carrier-grade NAT (CG-NAT) or something like Dual Stack lite (DS-lite) you likely will have this problem. This last scenario is very common on cable providers and especially in Asia/Pacific. Most non-business internet connections have at least one of two drawbacks: Your internet service provider typically does not give you a static IP (meaning the public IP address your modem/router is assigned will change every once in a while or even every 24 hours) and some ISPs don't even give you a "real" IP address as they do not have enough addresses to give out. You also need a name for your Home Assistant as homeassistant.local is a private domain suffix that does not exist on the internet. While it is possible to have your HA use Port 8123 internally and have your router do a port-forwarding from say the default https port of 443 to 8123, we recommend you NOT do this for reasons of simplicity which we will explain later. This requires opening a port on your router and getting a name for your Home Assistant on the internet. If you don't want to use Nabu Casa Cloud (which is fine, but you should still subscribe and enjoy the warm feeling of supporting Home Assistant), you need HA to be accessible from the internet. Nabu Casa Cloud acts as a "smart" proxy on the internet, tunnelling your frontend in an encrypted manner from your home to your phone, regardless where you are and without requiring opening your home network to inbound traffic from the internet. This fee helps support further development of Home Assistant. The easiest way is to subscribe to Nabu Casa Cloud for a monthly fee. This is all fine and will work perfectly well as long as you never take your phone or tablet outside your home, but what if you do? If you use Home Assistant OS and haven't changed any of the defaults, Home Assistant will also be reachable at. Just within your home network you might know that your Home Assistant is on an IP like 192.168.1.4 and listening on port 8123. In order for the app to talk to HA, it needs to know its address. This guide aims to help you understand the requirements, some of the complexities and our recommended typical solutions to setting up network access to your Home Assistant instance: The basics: How the app talks to your Home Assistant Having your Home available anywhere and everywhere you go is important, whether you forgot to turn off the stove or you want to check the camera views because of an alert.īecause we want your smart home to be private and secure on the web, many parts of the puzzle need to align just right so everything works as you expect.
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