In WIN7 evething is OK, this is the TUN:
https://drive.google.com/file/d/0B90eCDszXDt9cmFKVkZ1OGNwX1E
In Linux I found this config for tun0:
https://drive.google.com/file/d/0B90eCDszXDt9X0xwbzFzZHZFWGM
And in Linux to ping the from VPN client to PC after openVPN server is not work, instead on win7 everything is fine.
It's OK is Inet has same address line P-t-P ?
It's a way to fix the issue ?
Thank you.