Access both Nodes in HA-Setup via OpenVPN
I have a HA-Setup with 2 pfSense (2.4.5-RELEASE) appliances which is working without problems.
Both Firewalls have a unique WAN IP and share some public Virtual IPs (IP-Aliases). This is because I run on bare metal @OVH-Provider where CARP is not working. Therefore I must assign the Virtual IP (OVH Failover IP Block) to the current Master via the OVH-API when doing failover, which works.
I also have a OpenVPN Server running on one of these shared IP-Aliases.
When connecting to OpenVPN Server as a client, I can only access the Primary Firewalls Management LAN IP (e.g. 192.168.0.1/24). But I cannot access 2nd Node Management LAN IP (e.g. 192.168.0.2/24) and I cannot find any hints in the Logs.
What is required beside allowing traffic from OpenVPN-Network to the Management Network?
When I use a Jumphost that is connected to the management Network, then I can access both firewalls on LAN IP without any problem.
So it looks like firewall 1 still prevents traffic from OpenVPN network to the second Firewall LAN.
Which is also confusing: I can access any Host in the Management Network via OpenVPN. But the 2nd FW Node i cannot access.
Tried a web search?
The first hit brings the solution: https://docs.netgate.com/pfsense/en/latest/highavailability/troubleshooting-vpn-connectivity-to-a-high-availability-secondary-node.html