DNS Forwarding and RD flag set to 0

[jm35 at voila.fr]

Hello,
In BIND configuration, is it possible to set  the RD flag to 1, because my DNS Relay receives DNS Request with RD flag to 0 and the forwarding doesn't work when this flag is set to 0.
The configuration is this one :  Public  DNS with delegation of the zone toto to DNS A, public DNS sent requests concerning toto domain to a DNS Relay B which forward to DNS A. We dont want to make a direct connection between public DNS and DNS A.
Thanks for your help
JM

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