Dear friends, I am starting to learn VPN, and i am very confused with some points. For instance, concerning firewall rules.
It is not clear right now, on which interface i should see the protocol esp, ipencap, ah, etc. I could not figure it out on which interface, should i filter tcp, udp and application layer traffic like dns, http, ftp, ftp-data, etc between the both networks i am connecting ... Thanks in advance.
