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I have a recursive BIND dns server .

    forwarders {
    8.8.8.8;
    };

Is it possible to change the forwarder based on respone ip ?

For example if the response is 192.168.1.1 then forward/redirect it to other forwarder ?

       //if response ip or rpz-ip = 192.168.1.1 then
        forwarders {
        8.8.4.4;
        };

I have found solutions like Redirecting queries for a zone to a different nameserver but they are based on domain name but my question is based on RESPONSE ip .

Also found how to return a different IP based on request's subnet which is based on request ip.

The response ip could be detected by http://www.zytrax.com/books/dns/ch7/rpz.html#policy-triggers but i could not find a way to forward it to another forwarder .

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