The Common Address Redundancy Protocol or CARP is a computer networking protocol which allows multiple hosts on the same local area network to share a set of IP addresses. Its primary purpose is to provide failover redundancy, especially when used with firewalls and routers.

A first-hop redundancy protocol (FHRP) enables multiple physical interfaces to present a virtual IP address (VIP) in a redundant manner. Examples of such protocols include: When creating a new FHRP group, the user may optionally create a VIP as well. This IP address will be automatically assigned to the new group.

2023年7月3日 · 本文将详细介绍三种常见的第一跳冗余协议：HSRP（Hot Standby Router Protocol）、VRRP（Virtual Router Redundancy Protocol）和GLBP（Gateway Load Balancing Protocol）。 我们将探讨它们的工作原理、配置示例和优缺点。 HSRP是思科系统开发的一种第一跳冗余协议。 它通过将多个路由器组成一个冗余组，提供默认网关的冗余功能。 在HSRP中，有一个活动路由器和一个或多个备用路由器。 活动路由器负责转发流量，而备用路由器则处于待 …

A first hop redundancy protocol (FHRP) is a computer networking protocol which is designed to protect the default gateway used on a subnetwork by allowing two or more routers to provide backup for that address; [1][2] in the event of failure of an active router, the backup router will take over the address, usually within a few seconds.

FHRP Group A first-hop redundancy protocol (FHRP) enables multiple physical interfaces to present a virtual IP address in a redundant manner. Example of such protocols include: Hot Standby Router Protocol (HSRP) Virtual Router Redundancy Protocol (VRRP) Common Address Redundancy Protocol (CARP) Gateway Load Balancing Protocol (GLBP)

2025年1月16日 · This tutorial explains basic concepts and options of the First Hop Redundancy Protocol. Learn what the Layer 3 redundancy is and how FHRP provides redundancy.

2022年10月7日 · As the name suggests it is a redundancy protocol that manages multiple gateway routers, i.e., it automatically replaces a failed gateway router with a functional backup (redundant) gateway router. FHRP is a not single protocol in general, but a class of protocols that provide similar functions: HSRP – Hot Standby Router Protocol

2024年5月24日 · As a result, for a named interface (both FWs), I have 3 IPs: X.X.X.1 --> CARP IP (so shared) X.X.X.2 --> FW 1 only X.X.X.3 --> FW 2 only

First Hop Redundancy Protocol (FHRP) is a hop redundancy protocol that is designed to provide redundancy to the gateway router within the organization’s network by the use of a virtual IP …

2015年10月11日 · CARP (Common Address Redundancy Protocol) is protocol from FHRP (First Hop Redundancy Protocol) family. This protocol is partially based and very similar to VRRP (Virtual Router Redundancy Protocol), is absolutely free and was developed and firstly implemented in OpenBSD project.