DHCP
DHCP automates the assignment of IP addresses to network hosts. DHCP
addresses can be allocated:
�¡ Manually.A specific IP address is assigned to a MAC address.
�¡ Automatic.An IP address is permanently assigned to a host.
�¡ Dynamic.The IP address is assigned for a limited amount of time or
until the client releases it.
The process of acquiring an IP address from a DHCP server has four steps:
Step 1. The host broadcasts a DHCPDISCOVER message.
Step 2. The server responds with a DHCPOFFER message containing IP
address and optionally other settings.
Step 3. The client broadcasts a DHCPREQUEST message, requesting the
offered IP address.
Step 4. The server sends a DHCPACK confirming the address assignment.