DHCP stopped working

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This topic contains 1 reply, has 0 voices, and was last updated by  DrmCa 4 years, 7 months ago.

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  • #43938

    DrmCa
    Participant

    Noticed that the clients can no longer acquire IPs from DHCP and every 10 seconds getting this in the DHCP log:

    19:41:09 	Internet Systems Consortium DHCP Server V3.1-ESV
    19:41:09 Copyright 2004-2010 Internet Systems Consortium.
    19:41:09 All rights reserved.
    19:41:09 For info, please visit https://www.isc.org/software/dhcp/
    19:41:09 Wrote 11 leases to leases file.
    19:41:09
    19:41:09 No subnet declaration for VPN99 (192.168.250.254).
    19:41:09 ** Ignoring requests on VPN99. If this is not what
    19:41:09 you want, please write a subnet declaration
    19:41:09 in your dhcpd.conf file for the network segment
    19:41:09 to which interface VPN99 is attached. **
    19:41:09
    19:41:09 Listening on LPF/ETH00/00:06:5b:61:b1:28/10.10.10/24
    19:41:09 Sending on LPF/ETH00/00:06:5b:61:b1:28/10.10.10/24
    19:41:09 Sending on Socket/fallback/fallback-net
    19:41:09 There's already a DHCP server running.
    19:41:09
    19:41:09 If you did not get this software from ftp.isc.org, please
    19:41:09 get the latest from ftp.isc.org and install that before
    19:41:09 requesting help.
    19:41:09
    19:41:09 If you did get this software from ftp.isc.org and have not
    19:41:09 yet read the README, please read it before requesting help.
    19:41:09 If you intend to request help from the dhcp-server@isc.org
    19:41:09 mailing list, please read the section on the README about
    19:41:09 submitting bug reports and requests for help.
    19:41:09
    19:41:09 Please do not under any circumstances send requests for
    19:41:09 help directly to the authors of this software - please
    19:41:09 send them to the appropriate mailing list as described in
    19:41:09 the README file.
    19:41:09
    19:41:09 exiting.

    What should be done to fix DHCP?

    Thank you!

    #53304

    DrmCa
    Participant

    So far I tried to delete and re-create the network, reboot the server, but DHCP still dumps error about ‘already running’ into the log.

    ps shows that dhcpd is running, but it does not serve the client requests.

    I tried dhcping from the clients but got ‘no answer’.

    Any ideas?

    #53305

    DrmCa
    Participant

    When doing dhcping there is a new record in the log, but still no answer:

    19:35:54 DHCPREQUEST for 10.10.10.3 from 00:00:00:00:00:00 via ETH00: unknown lease 10.10.10.3.

    Tried deleting dhcpd.pid and rebooting, then checking if pgrep gave the same PID as contained in the new dhcpd.pid – they are same, so no discrepancy between running process and its pid file.

    I am really running out of options other than to re-format the box and rebuild from scratch.

    Any ideas??? Fulvio to the rescue!!!

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