4 ms·
Sadly the "happy eyeballs" algorithm obscures IPv6 problems. For example some subnets of amazon cloudfront are v4-reachable from my ISP while being v6-unreachab
by Eech0Shu 8y ago
Sadly the "happy eyeballs" algorithm obscures IPv6 problems. For example some subnets of amazon cloudfront are v4-reachable from my ISP while being v6-unreachable. But others are v6-reachable. When a DNS name points to a mix of v4 and v6 addresses nobody notices the failure because browsers are quick to fall back to v4 and thus the issue never gets reported.
The other problem is that such issues are difficult to report in the first place as private customer because customer support is geared towards dealing with user errors or last mile problems.
- virtuallynathan 8y agoDo you have examples of these subnets? ping me @ nahtnow at amazon dot com.
- Eech0Shu 8y agoNot at a location where I can check with my home ISP right now. But last time I checked a few days ago it affected some of the AAAA records that docs.rust-lang.org was pointing to. The affected ISP is deutsche telekom. I sent an email to the contact listed in the whois database but didn't get any reply.