15 Aug
2025
15 Aug
'25
4:15 p.m.
On 15 Aug 2025, at 9:00, Eric C. Miller via NANOG wrote:
A mouthful, but we're seeing an issue where we can ping 9.9.9.9 but not get response to UDP/53 dns queries. Filtering the prefix 9.9.9.0/24 and taking transports seems to run fine. We're also seeing TCP Resets on SecureDNS.
Anyone else seeing something similar?
Eric
Hi Eric - Can you please send a full set of debugging to support@quad9.net and we'll take a look. Please include source IP, a traceroute when you have that path active, and exact timeframes of the issue. JT -- John Todd - jtodd@quad9.net - +41 44 527 99 23 Chief Technology Officer - Quad9 Recursive Resolver