Building clusters with UmVirt Linux From Scratch

Configuring DHCP on SAN network

At first DHCP should work on SAN. We use PXE server as DHCP server.

Compute unit test launch

Run compute unit. On PXE boot attempt no ip address shold be assigned.

If IP-address is assigned that means that previous step is not completed, virtualization host is interact with "pxenet" network.

PXE-server configuration

• Configure network interface for "pxenet". We use 192.168.180.254/24.

• Install kea-dhcp-server service according to BLFS book.

  cd /usr/share/blfs-systemd-units make install-kea-dhcpd

• Open /etc/kea/dhcp4.conf

• Define interfaces

  "Dhcp4": {
            // Add names of your network interfaces to listen on.
            "interfaces-config": {
            "interfaces": [ "eth1" ]
            },
  

• Define DHCP requests hahdling in "pxenet"

  "subnet4": [
               {
                  "id": 1001,   // Each subnet requires a unique numeric id
                  "subnet": "192.168.180.0/24",
                  "pools": [ { "pool": "192.168.180.100 - 192.168.180.200" } ],
                  "option-data": []
               }
             ],
  

• Save changes

• Enable and start service

  systemctl enable kea-dhcp4-server
  systemctl start kea-dhcp4-server
  

Compute unit test launch

Run compute unit. On PXE boot attempt ip address should be assigned.

If IP-address is not assigned check kea configuration on PXE server and compute unit connection to "pxenet" network.