What does DHCP provide to a client?

DHCP provides IP addressing information to a client. When a device joins a network, it can request configuration from a DHCP server instead of requiring manual assignment. The server leases an IP address to the client and may also provide subnet mask, default gateway, DNS server, lease duration, and other options. DHCP does not provide a MAC address; the MAC address is assigned to the network interface by the hardware vendor. It does not provide a security zone, which is a firewall or segmentation concept. It also does not assign a port range in the normal client addressing process. DHCP is important operationally because it reduces manual configuration and supports scalable network management. It is also useful in investigations because DHCP lease records can help map an IP address observed in logs to the device that used it at a specific time. Reference/topics: Network Fundamentals 2.4, DHCP; Network Fundamentals 2.3, default gateway.