I have three Open VPN Servers that all serve clients behind them. How can I connect them so all clients can talk to each other? Essentially what I am looking for is how to route packets from tun0 to tun1 and tun2 on the same server...
I have successfully tried forwarding here but I can only forward traffic to one server (not 2).
I have tried sending each server ovpn files from the other 2 servers. That allows the server A to ping the other two servers (B&C) and their respective clients, but the clients behind server A cannot send a ping through server A to the other tunnels (client connections).
I have also tried creating two custom routing tables from here so all the ip addresses from Server2(and clients) and all of them from server 3(and clients) were in two custom routing tables in Server 1. My thought was the clients behind Server 1 could send a ping and the routing tables would route them. No response. I used tcpdump to watch the packets come into server 1 on the tun0 interface but they never got routed outbound.
The only caveat I have heavy traffic coming through the public eth0 of each server so I am sending all vpn traffic through eth1 (the internal nic).