DHCP server Aging/Scavenging

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  Hello
  
  My question is related to DHCP and DNS working..
  
  If DHCP server is having the lease of particular computer and we manually deleted the Host A record from the DNS server. Then whenever computer will connect the DHCP server then will DHCP create the HOST A record again in DNS or when DHCP assigned a new IP to computer then will create the new entry in DNS server?
  
  We have enabled dynamic DNS entry update option in DHCP server.
  
  Also, for Wi-Fi scope we have configured 1 day lease and for LAN we have configured 8 days lease duration. Then what will the best configuration we use for Aging/Scavenging with NO-refresh interval and refresh interval.
  
  Please suggest. In my environment we are getting many duplicate IP's issue and presently we have configured (4 days No-refresh interval and 4 days for refresh interval)
  

  Saturday, September 8, 2018 4:15 PM