Fixedaddress

Fixedaddress is a networking term used to describe the assignment of a permanent, unchanging address to a device within a network. In practice, fixedaddress is commonly implemented as a static IP address, though it can also be achieved through DHCP with a reserved lease. The key characteristic is that the device retains the same address across reboots and DHCP renewals, enabling predictable reachability and stable access control.

Implementation can occur in two main ways. First, the device is configured with a static IP address, subnet mask, gateway, and DNS settings manually. Second, a DHCP server is configured to always assign the same address to a given device, using its MAC address as the identifier; this is known as a DHCP reservation. In IPv6, fixed addressing can be implemented with static addresses or with DHCPv6 reservations, depending on administrative preference and network policy.

Fixedaddress is commonly used for servers, network printers, security cameras, remote access gateways, and other infrastructure components that require reliable connectivity and stable firewall rules. Advantages include predictable routing, simplified access control, and easier monitoring. Disadvantages include potential address space inefficiency if not managed, the risk of IP conflicts if documentation is incomplete, and the administrative overhead of maintaining an address plan.

Effective management of fixedaddresses typically involves an organized address plan, documentation of allocations, consistent naming conventions, and periodic audits. Tools such as IP address management systems can help track assigned addresses and avoid conflicts.