I need to have a modification of script or custom openvpn to enable ICMP tunneling. You may refer to hans tunnel which can be integrate with squid proxy. Or maybe you have an idea how to get ICMP tunneling. Either using openvpn or other script. The script must support multiple users and passwd which authenticate with my current mysql db structure..
By default, i use openvpn the create tunneling using TCP and UDP protocol that been authenticate using mysql-pam.
The protocol is define the the config files itself either tcp or udp.
So, what I need are:
1) ICMP protocol tunneling features to be added
2) The icmp tunneling can be made by modifying the openvpn or hans tunneling with squid proxy
3) Server and client can be authenticate by mysql server
4) or your own server and client software that provides the same things, icmp tunneling + mysql auth