OpenVPN is an SSL-based VPN technology that can run on both Linux and Windows systems.

TUN = Routed Server TAP = Bridged Server

ifconfig

route -n

ping <hostname>

ping <host IP>

You may find that the VPN connection pushes a new Default Route. This can wreak havoc on your VPN workstation behavior.

You can get around this problem by adding a route on the IPv4 tab when editing the NetworkManager VPN connection. Try adding a route something like:

address: 10.0.0.0 netmask: 255.0.0.0 gateway: 10.0.0.1 metric: 1000

Also select:

* ignore automatically obtained routes * use this connection only for resources on this network

The gateway was the remote OpenVPN server's private IP address.

http://www.linuxreaders.com/2010/12/09/openvpn-client-on-fedora/

Verify these packages are installed (probably by default):

sudo yum install openvpn NetworkManager-openvpn

cd Dropbox/VPN/MER/
sudo openvpn filename.ovpn

Using NetworkManager for VPN connections is easy for users to manage and doesn't require root or sudo permissions.

If a .ovpn file is provided, use it for clues to configure the NetworkManager VPN connection.

Click NetworkManager icon → Network Settings

Click + (Plus Symbol) → VPN → Create → OpenVPN

• Name of Connection
• Remote VPN Server (Gateway)
• Certificates (TLS)
• Browse to certificate (.p12 file) assigned by OpenVPN admin
  • You might store your VPN configuration files and certs in a Dropbox folder
• Password assigned by OpenVPN admin
• Advanced
  • General Tab
    • Use LZO Compression
    • Use Custom MTU - 1400
  • Security Tab
    • Cipher - BF-CBC