High availability

Unable to access internet after CARP HA configuration, but NAT working.

Started by 469

Replies: 5
Views: 20,239

October 24, 2025, 01:43:07 AM
by elie

OPNsense HA CARP – Backup node never becomes MASTER, primary continuou crashes

Started by Peter_Lanser

Replies: 0
Views: 8,441

October 14, 2025, 04:16:38 PM
by Peter_Lanser

Failover WAN

Started by Peter847

Replies: 1
Views: 10,241

October 13, 2025, 07:26:48 PM
by Maurice

HA Sanity Check - Not worth it for me, right?

Started by Linwood

Replies: 0
Views: 13,054

October 03, 2025, 08:26:12 PM
by Linwood

Using Gateway Group for HAProxy

Started by user290920

Replies: 1
Views: 11,050

October 01, 2025, 07:04:55 PM
by viragomann

pfsync0 interface output errors

Started by Phoenix4

Replies: 0
Views: 10,823

September 24, 2025, 12:31:13 PM
by Phoenix4

Add 2nd firewall to existing OPNsense network (trying to configure HA)

Started by user290920

Replies: 2
Views: 18,523

September 22, 2025, 05:58:30 PM
by Patrick M. Hausen

Ethernet unplugging does not trigger failover

Started by pinpoint

Pages1 2

Replies: 24
Views: 49,903

September 22, 2025, 03:18:07 PM
by pinpoint

CARP + BSD dhcrelay causes duplicate ACKs – Suggest replacing with ISC dhcrelay

Started by Rookie24

Replies: 3
Views: 16,061

September 15, 2025, 12:04:02 PM
by Marius Rieder

Trouble setting up HA 25.7.3

Started by davidfi01

Replies: 3
Views: 18,014

September 13, 2025, 11:19:40 PM
by davidfi01

2NIC firewall - Should it be WAN/LAN shared or LAN/CARP shared?

Started by user290920

Replies: 5
Views: 14,807

September 12, 2025, 09:09:52 PM
by Patrick M. Hausen

CARP - change gateway status on switch from master/backup

Started by Bubba88

Replies: 1
Views: 7,073

September 10, 2025, 08:04:53 PM
by gene.vigelis@gmail.com

Outbound IP4 traffic blocked on WAN interface of backup system

Started by ajr

Replies: 7
Views: 13,327

September 07, 2025, 04:42:25 PM
by ajr

Unbound on secondary keeps restarting

Started by tofuSCHNITZEL

Replies: 2
Views: 10,171

September 01, 2025, 11:22:15 PM
by tofuSCHNITZEL

Updating firmware on a HA pair, and no outbound comms from secondary unit

Started by RussM

Pages1 2

Replies: 15
Views: 24,985

August 29, 2025, 07:14:36 PM
by kuya1284

The configuration is not synchronized between the primary and backup OPNsense

Started by user31

Replies: 5
Views: 7,333

August 29, 2025, 01:44:35 PM
by Patrick M. Hausen

NAT with CARP not working

Started by fsidler

Replies: 4
Views: 6,234

August 28, 2025, 02:56:59 PM
by Monviech (Cedrik)

HAProxy SNI (Lua)

Started by codeshelldev

Replies: 0
Views: 6,060

August 25, 2025, 06:25:32 PM
by codeshelldev

CARP with DHCP on WAN

Started by bubbagump

Pages1 2

Replies: 29
Views: 67,629

August 20, 2025, 10:59:21 AM
by dfr

Kea DHCP + HA + VLAN

Started by lipa2

Replies: 4
Views: 7,575

August 20, 2025, 10:13:25 AM
by lipa2