Types Of Tcp Server Connection - Moxa Technologies OnCell G3111 User Manual

OnCell G3000 Series

Types of TCP Server Connection

1. Fixed Public IP for the OnCell.
If your cellular service provider offers a fixed public IP address after you connect to the cellular network,
you can access the OnCell G3111/G3151/G3211/G3251 from a host PC using either a private IP or public
IP.
2. Using Auto IP report.
If your cellular service provider offers a dynamic public IP address after you connect to the cellular network,
you can access the OnCell G3111/G3151/G3211/G3251 from a host PC using a fixed public IP. Since the IP
address of the OnCell G3111/G3151/G3211/G3251 is changed every time it is connected to the cellular
network, the host IP can be aware of the change by the Auto IP Report message sent from the OnCell
G3111/G3151/G3211/G3251. Refer to Appendix E for the format of the Auto IP Report Protocol.
3. Domain name with DDNS.
If your cellular service provider offers a public IP address after you connect to the cellular network, you can
also use the domain name to access the OnCell G3111/G3151/G3211/G3251. You would need to register
with a DDNS service provider and then enable the DDNS function in the OnCell
G3111/G3151/G3211/G3251. Refer to Appendix C for more information.
4. Connecting TCP client and TCP server within the same cellular service provider.
In order to connect properly, the IP addresses of the two OnCell devices must belong to the same
subnetwork. To ensure that this is the case, use the same cellular service provider to connect the devices
to the network. In addition, you will need to request that the cellular service provider provide you with two
private IP addresses (e.g., 192.168.1.1 and 192.168.1.2).
Introducing Serial Port Operation Modes
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