NetModule NB1600 User Manual page 61

Setting up a tunnel server just requires the server port to be set, the settings mentioned
below apply for both, server and client tunnels:
Type: The encapsulation type for this tunnel which can be either TUN (typically used
for routed connections) or TAP (needed for bridged networks)
Network mode: Defines how the packets should be forwarded, which can be either
routed or bridged from/to a particular LAN interface
Cipher: The required cipher mechanism used for encryption
Use compression: Enable or disable packet compression
Use keepalive: Can be used to send a periodic keepalive packet in order to keep the
tunnel up despite of inactivity
Redirect gateway: By redirecting the gateway, all packets will be directed to the VPN
tunnel. Please ensure that essential services (such as DNS or NTP servers) can be
reached at the network behind the tunnel. In doubt, create an extra static route
pointing to the correct interface.
Protocol: The tunnel protocol to be used for the transport connection
Authentication: You can choose between no authentication, credential-based (where
you have to specify a username and password) as well as based on keys and certifi-
cates. Note that keys/certificates have to be created or uploaded for making the
tunnel work.
ExpertConfiguration
OpenVPN Expert Configuration (Client)
The expert configuration mode offers a straightforward way to configure a tunnel by sim-
ply uploading a package containing the required configuration and optionally key/cer-
tificate files. A client tunnel usually consists of the following files:
client.conf: OpenVPN configuration file (see
options)
ca.crt: aoot certificate authority file
client.crt: Certificate file
client.key: Private key file
Please note that you may specify arbitrary file names, however, the configuration file
suffix must be .conf and all files referred in the configuration file must correspond to
relative path names.
OpenVPN Expert Configuration (Server) A server tunnel typically requires the fol-
lowing files:
server.conf: OpenVPN configuration file
ca.crt: Root certificate authority file
NB1600 User Manual
http://www.openvpn.net
61
for available