Description: Persistent leasing is a concept within the DHCP (Dynamic Host Configuration Protocol) that refers to the assignment of an IP address to a client in such a way that it remains even after the client disconnects from the network. Unlike temporary leases, which have a limited lifespan and can be reused by other devices once they expire, persistent leasing ensures that a specific client retains its IP address for an extended period, regardless of its connection status. This feature is particularly useful in environments where devices require a constant IP address to function correctly, such as servers, network printers, or IoT devices. Persistent leasing is configured on the DHCP server, which stores the client’s information and its assigned IP address, allowing the client to retrieve the same IP address each time it connects to the network. This not only simplifies network management but also improves communication efficiency between devices, as it avoids the need to reconfigure IP addresses each time a device reconnects.
Uses: Persistent leasing is primarily used in networks where certain devices need to maintain the same IP address continuously. This is common in environments where servers, printers, and other critical devices need to be accessible via a fixed IP address. It also applies in smart home networks, where devices like security cameras or voice assistants can benefit from a constant IP address to facilitate connectivity and remote control.
Examples: An example of persistent leasing is the configuration of a print server in an office, where a specific IP address is assigned to the server so that all employees can access it without issues. Another case would be a security camera system that requires a fixed IP address for users to reliably access recordings over the network.
