I've a strange behavior of the pfSense system when establishing a multiple site-to-site connection. All sites use the same version of pfSense (2.1). I've three sites which are all in different subnets.
Sites and subnets:
- Site A: 10.1.0.0/16
- Site B: 192.168.0.0/16
- Site C: 10.3.0.0/16
Linking sites:
- Site A (Server) < 10.10.10.0/24 > Site B (Client)
- Site A (Server) < 10.10.11.0/24 > Site C (Client)
- Site B (Server) < 10.10.12.0/24 > Site C (Client)
All sites need to be connected directly. I've managed to set this up without a problem. All sites were connected and I was reaching the different networks from each site. However, the connections are unstable.
When I remove all configurations for site C the connection between A and B works perfectly. As soon as I enable the connection with site C, A-B will be unstable (PING works randomly).
Is there a limit of setting up active site-to-site connections with OpenVPN in pfSense? Any suggestions for other configurations?
Thanks,
Sead
Best Answer
What you're describing is fine, and widely done. Your description makes it sound like it's all correct. My first guess is you have the routes wrong on one or more of the connections for site C, like trying to route the same network across two different OpenVPN instances.