8VBoxManage reference
•With --lowerip and --upperip, you can specify the lowest and highest IP address, respectively, that the DHCP server will hand out to clients.
Finally, you must specify --enable or the the DHCP server will be created in the disabled state, doing nothing.
After this, VirtualBox will automatically start the DHCP server for given internal or host-only network as soon as the first virtual machine which uses that network is started.
Reversely, use VBoxManage dhcpserver remove with the given --netname <network_name> or --ifname <hostonly_if_name> to remove the DHCP server again for the given internal or host-only network.
To modify the settings of a DHCP server created earlier with VBoxManage dhcpserver add, you can use VBoxManage dhcpserver modify for a given network or host-only interface name.
