I would like to know is there any way to retrieve the map between clients original public ip address and their associated vpn ip? in my solutions, all clients get connect via a single shared user/pass, and for logging their activity ip I'm logging established sessions via iptables log module. ex: iptables -t nat -I POSTROUTING -m state --state NEW -j LOG --log-prefix 'NewSessionStablished' the point is that is will log clients new session toward world! but with there vpn ip address as source ip, I need to have their original vpn ip address in place to be able to know for example which client had a worse activity... Sincerely, Ali R. Taleghani @linkedIn
