Configuring AdGuard DNS on OPNsense Router

To get started with using AdGuard DNS on your OPNsense router, follow these steps. First, navigate to `router_ip:3000` to begin setup.

The first step is to install the Community repo from the OPNsense repository. This will give you access to a wide range of plugins and features for your router.

Once you have installed the Community repo, you can start setting up AdGuard DNS. If you have VLANs or other LANs set up on your network, you may need to configure some firewall rules to allow traffic through to the DNS server IP on port 53 (DNS).

I found that some iOS devices struggled with connectivity when using AdGuard DNS without configuring these firewall rules. This was particularly problematic if I had removed all DNS servers from System -> General Setup. To resolve this issue, I had to add the DNS specifically on each DHCP interface.

Alternatively, you can follow a different approach by setting up `router_ip:5353` as a loopback address that directs traffic to OPNsense Unbound as a backup DNS server. This will ensure that your network remains connected even if your primary DNS server is unavailable.

To set this up, navigate to the firewall rules and create a new rule with the following settings:

* Destination port range: From DNS to DNS

With these steps complete, you should be able to start using AdGuard DNS on your OPNsense router. 'adguard dns ip'

Adguard dns ip