An unmanaged network does not perform IPAM functions and gives VMs direct access to an external Ethernet network. Therefore, the procedure for configuring the PXE environment for AHV VMs is the same as for a physical machine or a VM that is running on any other hypervisor. VMs obtain boot file information from the DHCP or PXE server on the external network.

A managed network intercepts DHCP requests from AHV VMs and performs IP address management (IPAM) functions for the VMs. Therefore, you must add a TFTP server and the required boot file information to the configuration of the managed network. VMs obtain boot file information from this configuration.

IP Address Management

• IPAM establishes DHCP scope to assigns IP’s
• Leverages VXLAN and Open Flow to intercept DHCP requests