@subnetspider@mastodon.bsd.cafe
Post #717750
2026-03-17 20:11 UTC
Today I've set up two OPNsense 26.1 Firewalls in a HA configuration on a single DSL internet connection.
Failover is working, the backup OPNsense does connect the PPPoE session, and requests a IPv6 prefix via DHCPv6, but it doesn't disconnected the PPP session after the main OPNsense comes back online.
Not sure why, I've set up CARP on the igb0_vlan interface, but it's not working. I probably forgot something, needs more troubleshooting.
Still, pretty nice not needing a router in front of the OPNsense Firewalls. :)
Replies (1)
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@jordan@mastodon.subj.am 2026-03-29 22:42
@subnetspider This sounds eerily like my issue w/pfSense and failover WAN connections (on the same box). The failover normally takes over fine but does not fail back to primary once it comes back online, even after a period of time has elapsed. I always figured I hadn't fully configured it, but 🤷♂️