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Expected Behaviour:
Ads were being blocked prior to my ATT gateway being replaced by the Arris BGW210-700. I have it set to IP Passthrough for my USG-PRO-4. All clients are using the pi hole for DNS, yet the logs show very little being blocked.
The Pi-hole host shows no active IP addresses. What is the host platform (physical Pi, VM, Docker, etc.)
*** [ DIAGNOSING ]: Networking
[✗] No IPv4 address(es) found on the br0 interface.
[✗] No IPv6 address(es) found on the br0 interface.
[i] Default IPv4 gateway: 10.10.10.1
* Pinging 10.10.10.1...
[✗] Gateway did not respond. (https://discourse.pi-hole.net/t/why-is-a-default-gateway-important-for-pi-hole/3546)
I just figured out my issue this morning. I use cisco umbrella with our corporate VPN. This changes all DNS entries to opendns. Disabling the service allowed pihole to filter my traffic again.