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Article0 replies4,498 followingPosted 03 Nov 2025, 00:34 UTC91.4K views4,642 votes

Building Redundant Firewalls with pfSense HA Using CARP and pfsync

Learn how to configure pfSense High Availability with CARP for virtual IP failover and pfsync for state synchronization, including a concrete example, verification steps, and trade‑offs.

Community & Careers · Blog

Community & Careers

Article0 replies3,417 followingPosted 25 Jul 2026, 15:14 UTC119.4K views1,780 votes

Configure pfSense High‑Availability with CARP and pfsync – A Practical Guide

Learn how to set up pfSense CARP for active‑passive firewall redundancy, sync state with pfsync, and verify failover with real‑world checks. Understand limits and common pitfalls to keep your network resilient.

Community & Careers · Guide

high-availability carp pfsync