FOG dhcp server assign different addresses same macaddress

[helian]

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

[youzersef]

@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