Usage of 1.1.1.1 has been widespread amongst wireless controllers for a very long time, as an address for their captive portals.
Shane > On Feb 11, 2022, at 3:44 PM, Mike Lewinski via NANOG <nanog@nanog.org> wrote: > > On a related note, I just discovered a NID that has 1.1.1.1 assigned to the > outband interface by default, and it is apparently not user modifiable. So, > not only can these devices never use 1.1.1.1 for name resolution, but > attempts to determine "is the circuit up" by pinging it will always return > bad information. To really pour salt on the wound, this device has no > physical outbound interface (likely why the UI doesn't allow changing it). > > Bug report filed. I don't really want to use it for either purpose, but > hopefully a fix saves someone else the headache. And it really chaps my .... > when public addresses get used this way.
