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.
Reservation Road was created on 2007-10-19.
Hopi Reservation was created on 1936-12-19.
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
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.
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.
Those are the four phases of acquiring an IP address via DHCP. More information would be needed to indicate which of the 4 phases are being used at this point.