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I want to put a filter to ignore the unnecessary requests from the various systems in my local network. Since IP keeps changing, so I want to put filter on hostnames. But from the request I can only get IP not hostname. So, how I can resolve this or how can I use reverse DNS on my private network?

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    More than one hostname can point to the same IP, so such a lookup would not necessarily be unique. What sort of answer are you expecting to get form this reverse lookup? – Brick Sep 23 '19 at 15:18
  • I do not understand what you want to achieve. Reverse DNS returns the hostname if you query an ip address. Because ip addresses change, this will not help you? – Ingo Sep 23 '19 at 18:40

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