I assigned MACs to later enable separate DHCP server. Script for other client is different only in the IP and MAC address. # Define list of TAP interfaces to be bridged together Ifconfig $br $eth_ip netmask $eth_netmask broadcast $eth_broadcast # below is commented for a reason, see above # Commented because I want to bridge clients networks! # Define list of TAP interfaces to be bridged, Verify-x509-name server_wKZztg0TXq0FsUvZ nameĮDIT (by request): my bridge scripts with some added comments. Tls-cipher TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256 Note also that there is redundant stuff left over from suggested route "first create working TUN setup and then modify config files", as suggested by the OpenVPN tutorial on bridging. Note that ok common names come up in server logs upon the connection, this is why I know that the one who connects first blocks the server. Note that both clients are exactly the same, the only difference are the keys, which I do not post. tapN-1, all joined under br0 bridge on the server, and of course listening on N UDP ports.Īm I missing something? Below are my config files for server and both clients. What is "tap-bridge" here? Should this be br0 (as it is referred to in bridge-start script on the same tutorial page?Ĭurrently I only see "take the bigger hammer solution"of having N servers running for N clients, providing tap0, tap1, tap2. I simply cannot find a way to do it, as the tutorial on bridging has some confusing config errors. Server: bridge br0 (tap0, tap1, tap2, tap3. Note that the docs here don't say anything about "multi-client" mode! Now, my quesion: is multi-client TAP bridging actually supported in the OpenVPN server? Obviously server ceases listening to new conections when i use -server-bridge, and I cannot find any reason why.Īdditional problem for me is IF multi-client would be supported, then I need to somehow tell the server to bring up NEW tapX interface for each connection (so they can be joined to bridge br0 on the server, e.g.: Of course I use "server-bridge" directive in my server config. All client connections will be routed through a single tun or tap interface.Ī helper directive similar to -server which is designed to simplify the configuration of OpenVPN's server mode in ethernet bridging configurations. In server mode, OpenVPN will listen on a single port for incoming client connections. Starting with OpenVPN 2.0, a multi-client TCP/UDP server mode is supported, and can be enabled with the -mode server option. Now, I dug myself even deeper in the OpenVPN reference, and I found the following: To me it looks like peer2peer mode of the server. In my configuration, the server accepts only one connection from the client that connects first! The second connection times out and server does not even print out a detected "connection" attempt (I used UDP for OpenVPN). After, I can nicely ping server from one client. I can start the openvpn server, and client connects. I dumbed-down the setup to 3 fixed private IPV4 IPs: I have bridge-start and bridge-stop scripts on both two client testing nodes and the server. Now, I figured out TAP bridging over VPN, I did it according to OpenVPN tutorial on bridging, ( ). It will significantly reduce the complexity of everything else people will do on these sites. Both of my networks will be behind NAT and therefore I am setting up server in the cloud with the public IP that will accept connections from the clients (which will have further bridged tap0 and eth0 interfaces but I am not there yet).ĮDIT (reason): I need working broadcast across client sites. I want everything to work like it is plugged into one Ethernet switch). I am setting up a bridge that will connect two or more disjoint physical networks in the single shared "ethernet space" (e.g.
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