DHCP settings

HC1DU 1 Reputation point
2020-08-18T10:28:31.837+00:00

Actually I’m a fresh bird of DHCP server. My question is when I add a reservation on a specific scope, do I need add it as exclusion range on this scope as well?

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. Jon Alfred Smith 541 Reputation points
    2020-08-18T11:07:43.437+00:00

    The proper term is a Lease Reservation. When you bind an IP address to a MAC address, the DHCP server will only lease that IP address og that MAC address and to no one else. You should not exclude it from your range. If a particular address is simultaneously reserved and excluded, the reservation can't work.

    https://sourcedaddy.com/networking/creating-reservations.html

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  2. Gloria Gu 3,891 Reputation points
    2020-08-19T02:32:52.283+00:00

    i,

    In regards to your issue, here're my suggestions:

    1. You use a reservation to create a permanent address lease assignment by the DHCP server. Reservations assure that a specified hardware device on the subnet can always use the same IP address.
      18644-50.png
    2. Creating one or more exclusion ranges prevents the DHCP server from assigning a client lease with any address in the exclusion range. For the devices that need static IP assignments, the company creates an exclusion range from each IP address range. It will protect IP address for use as a static IP address and preventing address conflicts between statically configured devices and dynamically configured devices.
      18584-51.png
    3. So if you want one PC can always use the same IP address, you should configure a reservation.
      If you want one IP address will not be assigned to one PC(when it has static IP rather than DHCP dynamic allocation), you should configure a exclusion.

    -------If my answer is helpful to you, please remember to mark them as answer. Thank you!------

    Regards
    Gloria