what is first hop redundancy protocol

Two Routers Sharing A Virtual Ip With Hosts On The Local Subnet Configured To Use It As Their Default Gateway
CCNA

How to Configure HSRP: Step-by-Step Guide

HSRP (Hot Standby Router Protocol) is Cisco’s proprietary First Hop Redundancy Protocol, designed for transparent failover of the first-hop device hosts use as their default gateway. It lets two or more routers share one virtual IP and virtual MAC address, as covered mechanically in the router redundancy article, with exactly one router actively forwarding traffic...

Muhammad Khattak 7 min read
Two Physical Routers Both Mapped To A Single Shared Virtual Ip And Mac Address
CCNA

Router Redundancy: How Virtual Routers Actually Work

The previous article in this series covered why a single static default gateway is a network’s hidden single point of failure. This one covers the mechanism that actually fixes it: the virtual router. A virtual router isn’t a separate physical device. It’s a shared identity — one IP address and one MAC address — that...

Muhammad Khattak 8 min read
Subscribe
Subscribe