Robustel GoRugged M1000 Pro User Guide
RT_M1000 Pro_UG_v01.01
27.12.2011
45 / 59
Confidential
Types of TCP Client Connection:
1.
Fixed Public IP (or dynamic public IP with domain name) for the host PC
The M1000 Pro will only be able to connect to a host PC if the PC is using a fixed public IP address (or dynamic
public IP with domain name), M1000 Pro can be any IP (either a private IP or public IP).
2.
Connecting TCP client and TCP server within the same cellular service provider.
In order to connect properly, the IP addresses of the two M1000 Pro devices must belong to the same
subnetwork. To ensure that this is the case, use the same cellular ISP to connect the devices to the network. In
addition, you will need to request that the cellular ISP provide you with two private fixed IP addresses (e.g.,
192.168.1.1 and 192.168.1.2).
4.3.2
TCP Server Mode
In TCP Server mode, the serial port on the M1000 Pro is assigned a port number. The host computer initiates contact
with the M1000 Pro, establishes the connection, and receives data from the serial device.
As illustrated in the figure, data transmission proceeds as follows: The host requests a connection from the M1000
Pro, which is configured for TCP Server mode. Once the connection is established, data can be transmitted between
the host and the M1000 Pro bidirectional.
Types of TCP Server Connection:
1.
Fixed Public IP for the M1000 Pro.
If your cellular service provider offers a fixed public IP address after you connect to the cellular network, you can
access the M1000 Pro from a host PC using either a private IP or public IP.
2.
Using Online SMS Notification.
If your cellular service provider offers a dynamic public IP address after you connect to the cellular network, you
can access the M1000 Pro from a host PC using a fixed public IP.
Since the IP address of the M1000 Pro is changed every time it is connected to the cellular network, you can be
aware of the change by the Online SMS Notification message sent from the M1000 Pro via SMS.
3.
Connecting TCP client and TCP server within the same cellular service provider.
In order to connect properly, the IP addresses of the two M1000 Pro devices must belong to the same
