What does this Unbound logging means?

[Marco Davids (SIDN)]

Hello,

My Unbound (1.19.1) logs the lines below.

But what exactly do they mean?

Does it mean I can't enable serve-expired and prefetching in combination 
with ECS ? If so, why not?

Feb 19 14:37:39 xs unbound: [29785:0] warning: subnetcache: 
serve-expired is set but not working for data originating from the 
subnet module cache.
Feb 19 14:37:39 xs unbound: [29785:0] warning: subnetcache: prefetch is 
set but not working for data originating from the subnet module cache.

-- 
Marco



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