JLCooper eBOX GPI8 - Manual (Page 44)

44
Using the eBOX GPI8 With a Router
In this section, we will explain how to configure the eBOX GPI8
to work with a router. In this example, we will show how to
configure two eBOX GPI8es behind a router. This same
information also applies to normal operation of the eBOX GPI8
with different port numbers.
The TCP Port that the eBOX GPI8 uses for configuration is fixed
at 4141. However, if the eBOX GPI8 is behind a router and the
router is configured to use Port Forwarding to remap the TCP
connection the eBOX GPI8, you may have to use a different port.
A good example of this is if you have 2 eBOX GPI8es at a remote
site. In the example below, there are two eBOX GPI8es behind a
router. The router is configured to pass configuration packets
coming to the router at IP Address 12.34.56.78, TCP Port 4141 to
the first eBOX GPI8 at IP Address 192.168.254.102, TCP Port
4141. Additionally, the router is also configured to pass
configuration packets coming to the router at IP Address
12.34.56.78, TCP Port 4142 to the second eBOX GPI8 at IP
Address 192.168.254.103, TCP Port 4141.
Router
Port Forwarding Table
4141→192.168.254.102:4141
4142→192.168.254.103:4141
IP Address = 12:34:56:78
TCP Port = 4141
eBOX
GPI8 #1
IP address = 192.168.254.102
TCP port = 4141
eBOX
GPI8 #2 IP Address = 12:34:56:78
TCP Port = 4142
IP address = 192.168.254.102
TCP port = 4141