CARP – Common Address Redundancy Protocol

CARP is an acronym for Common Address Redundancy Protocol. It is a free alternative to the Virtual Router Redundancy Protocol (VRRP) and the Hot Standby Router Protocol (HSRP).

The primary purpose of CARP is to allow multiple hosts on the same network segment to share an IP address. CARP works by allowing a group of hosts on the same network segment to share an IP address. This group of hosts is referred to as a redundancy group. The redundancy group is assigned an IP address that is shared among the group members. Within the group, one host is designated the master and the rest as back-ups. The master host is the one that currently holds the shared IP. It responds to any traffic or ARP requests directed towards it. Each host may belong to more than one redundancy group at a time.

[Adapted from OpenBSD.org]

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

Top Articles

List of Windows Operating System Versions & History [In Order]

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

What are the Five Generations of Computers? (1st to 5th)

Reviewed by Web Webster Each generation of computer has brought significant advances in speed and power to computing tasks. Learn about each of the...

Hotmail [Outlook] Email Accounts

Launched in 1996, Hotmail was one of the first public webmail services that could be accessed from any web browser. At its peak in...

Sales CRM

A sales CRM, or customer relationship management (CRM) tool for sales, is frequently...

ExecuPharm Ransomware Attack

On March 13, 2002, the ExecuPharm ransomware attack was used to encrypt and...

DarkSide Ransomware

DarkSide ransomware, first discovered in August 2020, is used to perform sensitive data...