gonzobrandon Hello, I understand the sensitivity of posting routing questions in the OpenVPN forum. I can handle making iptables work when I get to that point... Goal: I have server-bridge mode on. I would like to prevent client-to-client communications...EXCEPT a few administrative IPs. There are plenty of examples in the Wiki and FAQ about how to get that set up with routing mode, but I cant seem to get it working in bridge mode. client-to-client on the server.conf is commented out (off) and that works. I see the arp requests coming through (via tcpdump onbr0 interface) when a client tries to ping another client...but I cant simply apply a FORWARD iptables rule to allow a specific client (admin) getting through to another client. Am I thinking about this wrong? Is this possible in bridging mode? I can provide the standard route/server.conf file..but they arent far from the defaults packaged with OpenSSL. Thanks for your help
TinCanTech Do you understand the difference between modes: OSI Layer 2 (what you know as bridge mode) OSI Layer 3 (what you know as routing mode) :?: These are not modes imposed by OpenVPN .. they are networking principles.
gonzobrandon Our clients on vpn use on-ip traffic. We have to use bridge mode. Would ebtables be appropriate?