Messages

1

23.1 Legacy Series / Re: IPv6 DNS issues in 23.1.8?

« on: May 30, 2023, 11:58:05 am »

i have the same problem with 23.1.7_3.
i advice to go back to 23.1.6 most of people has tested this

Thanks for the tip. I actually just disabled IPv6 (as it's not critical for me for the moment - and have to get some work done) and everything is now working as a charm. DNS resolution back down to ~1ms for locally cached results (and 4ms for results fetched from Cloudflares cache).

I applied the patch mentioned in https://forum.opnsense.org/index.php?topic=34241.msg165713#msg165713 and it fixed some issues, but no the DNS lookup issue.

2

23.1 Legacy Series / Re: IPv6 DNS issues in 23.1.8?

« on: May 30, 2023, 10:50:25 am »

DNS resolution has also become very unstable for me after upgrading to 23.1.8. Using Unbound and Cloudflare as upstream DNS.

I've been running dual stack IPv4/IPv6 on my current ISP with no issues for more than half a year, and nothing seams to have changed on their side.

Looking at Smokeping, resolving test.test on unbound from my local network, I see a huge difference after upgrading to 23.1.8. Spikes going over 800ms and even some timeouts. Internal latency is <0.7 ms.

DNS resolution from my wired laptop are now fairly consistent > 40ms (even for cached results) and before the upgrade they were < 1ms for cached results.

I used to have 20/20 on ipv6-test.com, but now various tests time-out (inconsistent between refreshes) so I end up somewhere between 10/20 and 18/20.

I'll try to downgrade to 23.1.7_3 to see if it helps.