Cloudflare public DNS broken w/ AT&T CPE

James R Cutler james.cutler at
Mon Apr 2 16:07:32 UTC 2018

> On Apr 2, 2018, at 11:35 AM, Simon Lockhart <simon at> wrote:
>> This looks like a willy-waving exercise by Cloudflare coming up with the lowest
> quad-digit IP. They must have known that this would cause routing issues, and
> now suddenly it's our responsibility to make significant changes to live
> infrastructures just so they can continue to look clever with the IP address.

I am very impressed at Cloudflare’s forward thinking to force investing a significant amount of IPv4 infrastructure. This will obviously become even more important in the future as IPv6 withers away and is replaced by IPv4.

And, I repeat, please tell me how many end users know about or care about DNS, even after reading snake oil advertisements.

James R. Cutler
James.cutler at
PGP keys at

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