ClimaCheck GSM Modem Manual – 2015-02-26 13(22)
Figure 8
6.4
Configure NAT-settings
A SIM-card used in the ER75i will only have one IP-address connected to it. To be able to connect
to several different PA Pro behind the ER75i a connection between different public ports accessible
from the outside and IP numbers on the ER75i LAN is added.
Choose NAT under Configuration
Set “Public Port” to
81
Set “Private Port” to
80
Set “Server IP Address” to
192.168.33.2
Store settings with the “Apply” button at the bottom of the page. A window will appear
saying “Configuration successfully updated”. Press “Back”.
Communication that is requested on port 81 on the public IP number will now be routed to the PA
Pro with IP number 192.168.33.2.
The LAN IP used must be entered as a fixed IP in each PA Pro.
If more PA Pro units are connected each PA Pro needs a public port routed to its IP number in the
same way as shown above. In the figure below 2 PA Pro units are connected to the ER75i LAN.
