Installation Manual

GCT LTE Module Software Development Guide
Aquila Confidential
Version V2.2
Page7of27
3
Host Side VLAN Construction
3.1 VLAN tag of GCT module
The vlan tag of GCT module is 100,101,102,103. When the user sets up the VLAN on the Host
side, it needs to be dealt with accordingly.
3.2 Introduction of network card
After the drive is loaded normally, eth2 network card will be generated. (if want to know which
network card is generated please see dmesg log, different platforms and drivers, and the resulting
network card name may be different).
After network card eth2 is generated, there is no IP address on the eth2. Enter the command
"ifconfig" and get information about eth2
Figure 4 information about eth2
As the interval ip of the module is 169.254.0.1, ifconfig169.254.0.xxx (not 1) can be added to the
network card to establish communication with the module for upgrades and debugging.
3.3 How to establish network communication
1. How to judge the success of the network?
（1）AT+CPIN？
Query whether SIM CARD is ready, and whether the sim card is PIN lock or PUK lock, etc..
（2）AT+CFUN?
+CFUN:1 Query whether radio frequency is on or not, etc..
（3） AT+CGATT?
+CGATT:1Returns 1 indicating attachment and returns 0 without attachment.
（4）AT+CESQ
+CESQ: 99, 99, 255, 255, 26, 63 Query the module whether get signal
（5）AT+CGACT?
+CGACT：1,1 PDP has been activated