They have to be created within a scope and not be excluded from the scope... MAC address also needed.
DHCP uses the clients MAC address to determine the IP address a client receives.
At the DHCP server, you would create an address reservation. To do so, you need to know the host's MAC address for its network interface.
In Windows Server 2008, a DHCP reservation is equivalent to a "Static DHCP" allocation. This type of allocation ensures that a specific IP address is always assigned to a particular device based on its MAC address. Unlike dynamic allocation, where IP addresses are assigned from a pool and can change, reservations guarantee that the same IP address is consistently provided to the designated device.
Hopi Reservation was created on 1936-12-19.
Reservation Road was created on 2007-10-19.
The port 67 and port 68 are used by DHCP and the DHCP clients.
dhcp has to be authorized
The use of a DHCP relay agent is an agent that relays DHCP between DHCP clients and DHCP servers on different IP networks. The DHCP relay agent is compliant with RFC 1542.
router (config)# ip dhcp servicerouter (dhcp-config)# ip dhcp pool router (dhcp-config)# network
(DHCP) Dynamic host Configuration Protocol. The Default Port Number is: for DHCP client : 546 for DHCP server : 547
To enable the router to provide the same IP address to the Telnet server each time it connects to the network. In short, to provide a reliable static IP to use for Telnetting purposes.
yes DHCP require the authorization of the dhcp server before IP addresses can be allocated because until we authorize DHCP server the network does not know who is the dhcp server for the subnet. The DHCP server broadcasts the information to all.