NAT and Question Section Mismatch
john at iotis.org
Fri Apr 17 20:26:17 UTC 2020
I am running into a problem that I think is caused by either a misconfiguration in Bind9, our Cisco NAT, or perhaps both.
We host our own sites locally, including internal and external DNS. The external dns servers are delegated for reverse lookups. The NAT is a static one.
When I am on our internal network, I am able to query both servers and get the appropriate external ip address. However, when I try to do the same thing externally I get "Question section mismatch: got 184.108.40.206.in-addr.arpa/PTR/IN."
Some online tools will resolve the public ip to the appropriate hostname, but they will also show the ip as 10.1.1.6. Normally this wouldn't be an issue except that I think it is the reason for some emails not being delivered.
Any help or guidance is greatly appreciated.
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