User`s manual

Table Of Contents
OnCell G3111/G3151/G3211/G3251 Series User’s Manual Serial Port Operation Modes
4-7
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.
Please refer to Appendix E for the format of the Auto IP Report Protocol.