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DHCP logs filling with option 60 RRS feed

  • Question

  • Good morning,

    We have about 50 DHCP servers and I wrote a long script to back them up and that works great but the issue I"m having is we are starting to configure option 60 PXE and it seems to be writing a rediculous amount of logs which then get chunked into my backups.  

    I think this is a bug with MS DHCP server.   Has anyone else seen this before?  I can modify my script to ignore these servers but I would perfer we get to the root of the issue.

    When I say a rediculous amount I mean GB's.  Normally our largest sites are at 25MB.  

    2012R2 

    Tuesday, December 20, 2016 4:35 PM

All replies

  • Hi Tsloyan,

    >>I"m having is we are starting to configure option 60 PXE and it seems to be writing a rediculous amount of logs which then get chunked into my backups.  

    Did it become normal after disable option 60?

    Could you please provide information of logs to here for further troubleshooting?

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, December 21, 2016 8:51 AM
  • Sure.

    Also I might add that I found out by our SCCM admin that SCCM is setting up this DHCP server.  Another piece of the puzzle.

    Current directory size:

    2,093.01 MB

    Microsoft DHCP Service Activity Log


    Event ID  Meaning
    00 The log was started.
    01 The log was stopped.
    02 The log was temporarily paused due to low disk space.
    10 A new IP address was leased to a client.
    11 A lease was renewed by a client.
    12 A lease was released by a client.
    13 An IP address was found to be in use on the network.
    14 A lease request could not be satisfied because the scope's address pool was exhausted.
    15 A lease was denied.
    16 A lease was deleted.
    17 A lease was expired and DNS records for an expired leases have not been deleted.
    18 A lease was expired and DNS records were deleted.
    20 A BOOTP address was leased to a client.
    21 A dynamic BOOTP address was leased to a client.
    22 A BOOTP request could not be satisfied because the scope's address pool for BOOTP was exhausted.
    23 A BOOTP IP address was deleted after checking to see it was not in use.
    24 IP address cleanup operation has began.
    25 IP address cleanup statistics.
    30 DNS update request to the named DNS server.
    31 DNS update failed.
    32 DNS update successful.
    33 Packet dropped due to NAP policy.
    34 DNS update request failed.as the DNS update request queue limit exceeded.
    35 DNS update request failed.
    36 Packet dropped because the server is in failover standby role or the hash of the client ID does not match.
    50+ Codes above 50 are used for Rogue Server Detection information.

    QResult: 0: NoQuarantine, 1:Quarantine, 2:Drop Packet, 3:Probation,6:No Quarantine Information ProbationTime:Year-Month-Day Hour:Minute:Second:MilliSecond.

    ID,Date,Time,Description,IP Address,Host Name,MAC Address,User Name, TransactionID, QResult,Probationtime, CorrelationID,Dhcid,VendorClass(Hex),VendorClass(ASCII),UserClass(Hex),UserClass(ASCII),RelayAgentInformation,DnsRegError.
    24,12/21/16,00:00:08,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,00:00:08,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,00:00:08,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,00:31:08,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,00:31:08,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,00:31:08,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,01:32:49,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,01:32:49,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,01:32:49,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,02:34:28,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,02:34:28,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,02:34:28,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,03:36:19,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,03:36:19,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,03:36:19,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,04:38:02,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,04:38:02,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,04:38:02,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,05:39:45,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,05:39:45,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,05:39:45,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,06:41:29,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,06:41:29,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,06:41:29,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,07:43:11,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,07:43:11,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,07:43:11,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,08:44:52,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,08:44:52,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,08:44:52,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,09:46:34,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,09:46:34,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,09:46:34,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,10:48:15,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,10:48:15,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,10:48:15,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,11:49:58,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,11:49:58,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,11:49:58,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,12:51:40,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,12:51:40,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,12:51:40,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,13:53:25,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,13:53:25,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,13:53:25,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,14:55:10,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,14:55:10,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,14:55:10,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,15:56:53,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,15:56:53,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,15:56:53,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,16:58:39,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,16:58:39,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,16:58:39,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,18:00:26,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,18:00:26,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,18:00:26,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,19:02:13,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,19:02:13,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,19:02:13,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,20:03:57,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,20:03:57,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,20:03:57,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,21:05:42,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,21:05:42,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,21:05:42,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,22:07:26,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,22:07:26,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,22:07:26,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    24,12/21/16,23:09:09,Database Cleanup Begin,,,,,0,6,,,,,,,,,0
    25,12/21/16,23:09:09,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0
    25,12/21/16,23:09:09,0 leases expired and 0 leases deleted,,,,,0,6,,,,,,,,,0

    Thursday, December 22, 2016 3:53 PM
  • Hi Tsloyan,

    How many of DHCP log files are stored in this directory?

    Have you backup DHCP data at this folder?

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.



    • Edited by John Lii Friday, December 23, 2016 3:00 AM
    Friday, December 23, 2016 3:00 AM