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FOG dhcp server assign different addresses same macaddress

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  • H
    helian
    last edited by Feb 22, 2024, 12:27 PM

    HI,
    my fog server also works as a dhcp server, everything is fine but I encounter this problem: when the client starts on ipxe for deployment, the dhcp server assigns an ip, the problem is that when the operating system is restarted the dhcp server assigns a other ip. This leads to saturation of the availability of IP addresses.
    Example:
    MACADDRES: cc:96:XX:XX:48:36 ipxe boot: 192.168.14.28
    MACADDRES: cc:96:XX:XX:48:36 windows boot: 192.168.14.32

    Y 1 Reply Last reply Mar 25, 2024, 7:44 PM Reply Quote 0
    • Y
      youzersef @helian
      last edited by youzersef Mar 25, 2024, 1:51 PM Mar 25, 2024, 7:44 PM

      @helian

      Hi,

      Which Distribution do you use?
      there is many solutions for this Problem.

      Example:
      1- you have to edit your dhcp-range

      I do not use the fog server as DHCP-Server. But i can help u if u have Debian Distribution 😉

       nano /etc/dhcp/dhcpd.conf
      

      find the line like this:

      
      subnet 192.168.14.0 netmask 255.255.255.0 {
        range 192.168.14.10 192.168.14.100;
        option routers 192.168.14.1;
        option domain-name-servers 8.8.8.8, 8.8.4.4;
        default-lease-time 600;
        max-lease-time 7200;
      }
      
      

      you can setup the range of DHCP-Server as u want. I will prefer from 150-230. be careful just edit the last octet do not change the your whol network.

      Restart ur DHCP Server

      systemctl restart isc-dhcp-server
      
      

      Now you can reserve the IP-Adresses in the file DHCP-Leases. In this file you will find every Host in this network. You can use Every IP-Address under 192.168.14.150. do not use the IP-Address of the FogServer or any IP-Address which is already in used.

      Nano /var/lib/dhcpd/dhcpd.leases
      
      
      systemctl restart  isc-dhcp-server
      
      

      I hope that i could help 🙂

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