ft636 (14.10.2013)
- 34 -
Kompetent für Elektroniksysteme
ft636 (14.10.2013)
- 35 -
Kompetent für Elektroniksysteme
Connection via internet (DSL) with VPN tunnel
This connection basically looks like the variant described in the previous paragraph. But a so called
VPN tunnel (Virtual Private Network) is set up via internet. This is the safest connection via internet
as it can only be „seen“ by the participating devices. However the participating router must support
a VPN connection. To simplify matters the routers should be similar devices by the same manufac-
turer.
Another difference to the previous configuration is that the IP Interfaces can directly access the
opposite network. The internet connection is transparently connected through by the VPN routers.
The IP Interfaces do not see anything of this connection.
The following illustration shows a configuration with direct connection of the IP Interfaces to the
router.
Major 5a control head
IP interface
DSL router with
VPN function
IP Interface
Two-way radio
DSL splitter
DSL splitter
Connection via internet
Here the networks on both sides need different IP addresses, they do not see anything of the set-
tings of the internet connection, the routers sort this out among themselves. The IP addresses on
the DSL provider side are again alloted by the provider.
A possible configuration could be:
DSL router
Local network
Router:
192.168.0.1
Net mask
255.255.255.0
IP Interface 192.168.0.2
DSL provider
84.171.31.100
DSL router
Local network
Router:
192.168.1.1
Net mask
255.255.255.0
IP Interface 192.168.1.2
DSL provider
217.88.202.39
Control head unit side
Two-way radio side
DSL router with
VPN function
Summary of Contents for FT 636
Page 1: ...IP Interface FT 636...
