This is a friendly note to any Comcast net admins who might be interested: We have a Business Fiber circuit and run a public NTP server in the pool. It seems Comcast is using private IP space (mostly 10.29.0.0/16 and 10.183.0.0/16) for equipment and are trying to use the NTP pool for time services (without NAT). Clearly that isn't working out so hot - my firewall logs are chalk full of requests from those two networks, so I'd assume it's a pretty large number of misconfigured devices since I'm one of many many pool servers - and it's fairly safe to assume they're Comcast devices since they aren't getting eaten before hitting my firewall from Cocmast. Just for laughs, I suspect, Comcast blocks bogons at my gateway, so I couldn't even let them get time from me if I wanted to. Clearly not a critical (to me) issue, but I figured it was worth passing along since I count on Comcast for interwebs and it's likely Comcast could see time sync issues related to this. Sincerely, Mike McLaughlin