49
dyndns
no-ip
ovh
dyndnsit
changeip
sitelutions
Figure 5.3.4. Subsection dedicated to the DDNS.
5.3.5.
OpenVPN
VPN stands for Virtual Private Network. With this service, you will be able to communicate with the
SB when it is out in the field where it neither has a public (accessible from the WEB) nor a static
(not changing) IP address. The OpenVPN service makes sure to access the SB through a
persistent IP address. OpenVPN service works nicely if the SB is connected to a ADSL /cable TV
router you find in private houses. No further settings on the router (e.g. port-forwarding as for
DDNS) are required.
The VPN interface uses not the real, but a virtual IP address. This address remains always the
same (or – depending of the configuration of the OpenVPN server – the address is at least known
by the OpenVPN server) regardless of the real IP address and if the SB is connected via wired
connection. The virtual address is shown here and on the
Status
screen in the VPN section.
To complete the configuration, click the
Enabled
box, then upload the 4 configuration files on the
SB, and click on Apply. The configuration files (sometimes referred as VPN keys) are provided by
the provider of the VPN service.
