Titan Electronics Inc NETCOM423 Manuel D’Utilisation
For the first test start the
Service manually by click on
the “
Service manually by click on
the “
Start
” link. Windows
displays the progress. The
connection of OpenVPN will
be opened. Verify by web
browser or PING.
connection of OpenVPN will
be opened. Verify by web
browser or PING.
Image 137: Start OpenVPN Service
When a service is started, Windows offers the option
to “
to “
Stop
” or to “
Restart
” it. Stopping the OpenVPN
service will close all connections, Restarting will
shortly drop and then re-establish them.
shortly drop and then re-establish them.
Image 138: Service
Options
As each other service, also the
OpenVPN service has three different
types for Startup. When it is
OpenVPN service has three different
types for Startup. When it is
Disabled
the service can’t be started at all.
Configured for
Configured for
Manual
it requires explicit action to run the software. If
the service is configured for
Automatic
start, the program is run when
all drivers are finally loaded, and a user may log on to the system. But
note, no user needs to log on to start the program. It is started
independent from Startup options configured for any user.
note, no user needs to log on to start the program. It is started
independent from Startup options configured for any user.
Image 139: Startup Types
When the configuration file “client.ovpn” is in its final state, it may be
convenient to set the OpenVPN service to Automatic Startup Type.
Even when the Virtual Serial Ports are only used by a dedicated user
when he is logged on, nobody needs to care about enabling the network
link. It will be simply available.
convenient to set the OpenVPN service to Automatic Startup Type.
Even when the Virtual Serial Ports are only used by a dedicated user
when he is logged on, nobody needs to care about enabling the network
link. It will be simply available.
8.3.4. O
PEN
VPN
WITHOUT
E
NCRYPTION
The implementation of OpenVPN™ in the NetCom Serial Device
Servers also offers to use the VPN tunnel without encryption (Image 21,
“Encryption” as
Servers also offers to use the VPN tunnel without encryption (Image 21,
“Encryption” as
None
). Why should one use a VPN tunnel for
encryption, but actually transmit plaintext data? This option provides
for a very simple setup to communicate through a complex network of
Firewall implementations. As described in section Firewall Traversal
Configuration, there are many parameters to provide for passing a
Firewall Router, especially when this uses NAT for protection. If there
is more than a single Router, this can be a lot of work. Now with
OpenVPN™ a single TCP connection must pass through the Router.
The configuration is much more simple, the Router does not need to
for a very simple setup to communicate through a complex network of
Firewall implementations. As described in section Firewall Traversal
Configuration, there are many parameters to provide for passing a
Firewall Router, especially when this uses NAT for protection. If there
is more than a single Router, this can be a lot of work. Now with
OpenVPN™ a single TCP connection must pass through the Router.
The configuration is much more simple, the Router does not need to
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