Automation Units and Automation Networks
SICAM RTUs, SICAM AK 3 User Manual 255
DC2-028-2.03, Edition 07.2016
6.4.2 SICAM AK 3 as Telecontrol Substation with IPSec VPN via GPRS
Router and ADSL network
Hint
You must enter the extern visible IP-address of the GPRS router as default gateway in parameter Net-
work settings| IP address , in this example 192.168.1.2
ADSL
GSM/GPRS
CP-2016
Office Zone
Control Center Zone 1
SICAM
TOOLBOX II
UDP
IEC 61850
60870-104
https
NTP Server
SNMP Manager
SICAM
WEB
https
https
NTP Server
SNMP Manager
SICAM
WEB
https
2 redundant router
Cisco 1941 (HSRP)
IP security - Remote Site 2
IP-Address
: 50.50.50.83
IP security - Remote Site 2
Subnet IP-Address
Subnet mask
:
:
122.33.0.0
255.255.255.0
IP security - Remote Site 1
IP-Address
: 40.40.40.83
IP security - Remote Site 1
Subnet IP-Address
Subnet mask
:
:
172.17.0.0
255.255.248.0
IP address: 122.33.0.254
Control system or SICAM AK 3
IP address: 122.33.0.2
Subnet mask: 255.255.255.0
IP address: 172.17.0.254
Control system or SICAM AK 3
IP address: 172.17.0.22
Subnet mask: 255.255.248.0
ADSL Router
static IP adress: 40.40.40.82 (public)
ADSL Router
static IP adress: 50.50.50
GPRS Modem
Siemens Scalance M874-2 2.5G-Router
dynamic IP address: 90.90.90.82 (public)
internal 2nd IP address: 192.168.1.2
Own IP address
IPSec VPN own
tunnel IP address
IPSec VPN own
tunnel subnet mask
................
.....................
.............
.........
......
172.16.0.3
255.255.0.0
192.168.1.151
192.168.1.161
255.255.255.0
Subnet mask
Default gateway
Possible interface conigurations:
X0 (PRE0): ET24 on CPCX26 or PCCX26
X1 (PRE1): ET24 on CPCX26 or PCCX26
X3 (PRE3): SM-2558/ETA4 on BSE
CP-2016 or CP-2019
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