Named on rhel7 fails to forward the query

Issue

• Named on rhel7 fails to forward query.
• Fails to forward the query if the reverse zone is in private range.
• Named on rhel 7 fails to get answer for reverse zones.
• Named on rhel 7 fails to resolve reverse zones.
• Example

zone "6.168.192.in-addr.arpa" {
    type forward;
    forwarders {
        192.168.6.41;
        192.168.6.42;
        };
    };