Networking

Gateway Redundancy with VRRP and HSRP

Network Design diagram · made in Skemio

Network diagram showing WAN connecting to redundant active and standby routers, sharing a virtual gateway IP that routes traffic down to a switch and client devices.
Network diagram showing WAN connecting to redundant active and standby routers, sharing a virtual gateway IP that routes traffic down to a switch and client devices.
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What it shows

  • Two physical routers share one virtual IP and a floating virtual MAC.
  • Heartbeat timers trigger failover in under 3 seconds without host changes.
  • Hosts point exclusively to the VIP, staying oblivious to router failure.

The takeaway

First-hop redundancy protocols prevent single-router outages from severing your subnet's external access.

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