Unbound random THROWAWAY responses

Started by RickNY, September 07, 2020, 04:42:06 PM

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Hi all.. I've been using Cloudflare DNS using DNS over TLS with Opnsense for quite some time now.. In previous versions, I was using the "Custom" field to specify the Cloudflare directives.. Now, I have that empty and I am using the "Miscellaneous" section of Unbound and using the "DNS over TLS Servers" section to specify 1.1.1.1@853 and 1.0.0.1@853.  At random times, clients on the LAN will not be able to resolve DNS entries.. Currently I only have the log level set to '2', but when the clients cant resolve these certain addresses, I am seeing this in the logs:

2020-09-07T10:03:26   unbound[23196]   [23196:0] info: query response was THROWAWAY
2020-09-07T10:03:26   unbound[23196]   [23196:0] info: reply from <.> 1.1.1.1#853
2020-09-07T10:03:26   unbound[23196]   [23196:0] info: response for www.tivo.com. TYPE65 IN
2020-09-07T10:03:26   unbound[23196]   [23196:0] info: query response was THROWAWAY
2020-09-07T10:03:26   unbound[23196]   [23196:0] info: reply from <.> 1.0.0.1#853

This seems to be an issue that pops up for many people at random times - just wondering if anyone has run into it and found any reliable workarounds.  The events are random, and often after a few minutes, they resolve properly.