A DHCP Server (Dynamic Host Configuration Protocol) automatically gives network devices (computer, smart phone, etc.) the configuration information required to communicate on a network. The DHCP server will assign a device an IP address, a subnet mask and a default gateway. Some DHCP servers will also provide the network device with further configuration information such as the address of a DNS (Domain Name Server).
When your computer or smart phone connects to a wireless network, it has most likely recieved is configuration from a DHCP server.
DHCP Server can be a standalone server
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.
How to install the DHCP in win 8 server
(DHCP) Dynamic host Configuration Protocol. The Default Port Number is: for DHCP client : 546 for DHCP server : 547
dhcp has to be authorized
dhcp-client
DHCP server configuration in /etc/dhcp/dhcpd.conf(FEDORA)or /etc/dhcpd.conf (RHEL).
Usually nothing, today all routers have a DHCP server included.
Router is usually configured as a DHCP client for WAN (Internet) network and as a DHCP server for local network.
The Integrated Router is both a DHCP client and a server (p 186 BMF)
Below are the steps how DHCP Client/Server relationship works.IN the network the clicent device requests a packets to DHCP server to login to the network. This Packet known as DHCPDiscover.The DHCP Server receives that packet and in responce it sends a packet to the client, this is called as DHCPOffer. This DHCPOffer packet contains unleased or unused list of IP(Internet Protocol) addresses over the LAN.The DHCP Client receives the DHCPOffer from DHCP Server and responds. This is called DHCPRequest, and this request contains the accepted IP address in the DHCPOffer it received from DHCP Server.Now the DHCP Server receives the DHCPRequest and sends back the DHCPPackets and lets clients to access network.
dhcpnack is message from dhcp server when dhcp server is not having any ip left in address pool or client fails to respond to offer in given time