none
DHCP server. Unique ID. How use only MAC address RRS feed

  • Question

  • Hello,

    I have Windows Server 2012 with install DHCP role.
    In "address leases" I have records with field "Unique ID" that contains not MAC address (contain more longer code)

    How I can constrain DHCP server in to issue lease only by MAC address and do not accept issue by no MAC address "Unique ID" ?

    Wednesday, October 25, 2017 11:17 AM

All replies

  • Hi,

    Distribute DHCP Leases Based on MAC Address

    More information about  MAC address filtering  ,   please refer to the following article:

    https://technet.microsoft.com/en-us/library/dd759190(v=ws.11).aspx

    Best Regards,

    Frank


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Thursday, October 26, 2017 5:26 AM
  • Thank you frank_song for answer. 

    Maybe if I will filter by MAC, some appliance do not receive IP address ... 

    I want to get rid of long "Unique IDs"

    I want force appliance to give the "right" MAC-address



    • Edited by ntds.dit Thursday, October 26, 2017 7:04 AM
    Thursday, October 26, 2017 7:01 AM
  • Hi,

    According to your description, my understanding is that the DHCP scope almost run out due to unique ID similar to long code(13b.....). And this problem occurs after  reconciling.

    The DHCP Server service stores detailed and summary IP address information in the DHCP database. When reconciling scopes, the detailed and summary entries are compared to find inconsistencies. After you select and reconcile scope inconsistencies, the DHCP Server service either restores those IP addresses to the original owner or creates a temporary reservation for those addresses. These reservations are valid for the lease time assigned to the scope. When the lease time expires, the addresses are recovered for future use.

    So, after reconciling there would be new lease appeared and may be not in use currently. You may shorten the lease duration and check to see if these lease will disappear when lease duration expired.

    Besides, have you configured the DHCP to assign IP lease to remote clients (remote access server  will obtains multi IP leases from a DHCP server at one time)?

    Best Regards,
    Frank


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Thursday, October 26, 2017 7:51 AM
  • Hi,
    Just checking in to see if the information provided was helpful. Please let us know if you would like further assistance.

    Best Regards,

    Frank

    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, October 31, 2017 8:45 AM
  • Hi,

    Was your issue resolved? 

    If you resolved it using our solution, please "mark it as answer" to help other community members find the helpful reply quickly.
    If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.
    If no, please reply and tell us the current situation in order to provide further help.

    Best Regards,
    Frank

    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, November 8, 2017 9:15 AM