You should try using it with non-Cisco gear, 1.1.1.1 works extremely well and resolves super fast... except with Cisco/Meraki. Why? Because Cisco has, over the years, improperly treated 1.x.x.x. as fair game for their own uses. https://blog.cloudflare.com/fixing-reachability-to-1-1-1-1-globally/ Who else has been mis-using 1.1.1.1 more than others? Using the RIPE Atlas probes gives excellent visibility into residential and business internet connections, however they’re connected via a cable, so this rules out another use-case, WiFi access points. After very little research we quickly came across Cisco mis-using 1.1.1.1, a quick search for “cisco 1.1.1.1” brought up numerous articles where Cisco are squatting on 1.1.1.1 for their Wireless LAN Controllers (WLC). It’s unclear if Cisco officially regards 1.0.0.0/8 as bogon space, but there are lots of examples that can be found on their community websites giving example bogon lists that include the /8. It mostly seems to be used for captive portal when authenticating to the wireless access point, often found in hotels, cafés and other public WiFi hotspot locations.
... View more