Dynamic Host Configuration Protocol overview

As you know, the Dynamic Host Configuration Protocol (DHCP) is a protocol that dynamically assigns IP addresses to devices on a network. This makes it clear that DHCP is a network service that works in client/server architectures where clients request services, and servers respond back with services. Naturally, a DHCP service in such a networked environment is named a DHCP server. With that being said, this section discusses DHCP servers from the perspective of the Cisco router.

Assigning IPv4 addresses dynamically

As the name implies, a DHCPv4serverdynamically assigns IPv4 addresses to devices. Usually, IP addresses that are assigned to devices are located in the DHCP pool. Since these IP addresses have a defined period, they are named leased IP addresses. After the lease expires, the DHCP client must ask for another IPv4 address. It often happens that the same IP address is being reassigned. That is known as IP address renewal. Certainly, a DHCP...