Maintained by: NLnet Labs

[Unbound-users] Semantics of 'forward'

Florian Weimer
Sat Jul 24 10:31:25 CEST 2010


* Tim Kindberg:

> DNS clients on U receive correct results from D as expected.
> But when C requests a resolution result via U, D does not reply.
>
> In other words, D has a setting that drops recursive requests not
> originating with the requestor.

The DNS protocol currently does not support that because it does not
distinguish forwarded from original requests (but there is a draft
which would change this).

So D probably just refuses to respond to EDNS requests which U happens
to send.  This would also happen to C if they sent EDNS requests, too.