I have a Cisco 1841 Router, with the IOS version c1841-ipbase-mz.124-3i.bin. I have a static NAT entry in the running config, such as:
ip nat inside source static 10.0.0.1 188.8.131.52
The network layout is attached. Whenever someone in my internal network (that sends a DNS request for mydomain.com at the ISP's DNS server, instead of returning 184.108.40.206, it reads 172.16.0.10, that would be the DMZ IP of my firewall.
I understand DNS Doctoring (Rewriting) is the reason this happens.
Is there any way I can disable it?