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Is it necessary to have DNS lookup for the primary router?

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TitleIs it necessary to have DNS lookup for the primary router?
Question
Is it necessary to have DNS lookup for the primary router?
Environment
  • Routed network
  • Connection to public Internet
  • DNS
  • PING to name of primary router produces IP address via DNS lookup
Answer
  • There is no definitive answer for this.  It may be a requirement for certain network management functions which may rely on the URL name for various connectivity and management tasks. 
  • We would not recommend removing this from any DNS tables without fully investigating what functions or services may rely on this information. If this address was issued by a local ISP we would suggest contacting them to inquire.
Additional notes

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