[Unbound-users] How to config whitelist for EDNS client subnetin unbound

Yuri Schaeffer yuri at nlnetlabs.nl
Wed Jan 7 22:23:48 UTC 2015


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On 01/06/2015 07:32 PM, Over Dexia wrote:
> But I believe that would be mitigated by storing the no-ecs
> response with a source 0.0.0.0/0 (like Kun YU proposed) in the
> subnet cache. If all queries for that domain use this cache, the
> reply should be like intended.

Think about what having a scope netmask of 0 means:
	"The most specific answer available for your source IP has the first
0 bits in common with the address 0.0.0.0"

Thus any query will match this cache entry. Which will result in the
same behaviour as the current implementation.

//Yuri
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