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Figure 15 IP address setup
Table 6 Station IP and DHCP
IP acquisition mode
Advantage
Static IP
Default setting of module is Static IP and default IP is
192.168.0.7. When user set module in Static IP mode, user need
set IP, subnet mask and gateway and must pay attention to the
relation among IP, subnet mask and gateway.
DHCP
Module in DHCP mode can dynamically get IP, Gateway, and DNS
server address from Gateway Host. When user connect directly
to PC, module can’t be set in DHCP mode. Because common
computer does not have the ability to assign IP addresses.
Subnet mask is mainly used to determine the IP address of the network number and host number, indicating the
number of subnets, judging whether the module is in the subnet flag. Subnet Masks must be set , we usually use the C
class subnet mask: 255.255.255.0, network number for the first 24 bits, host number for the last 8 bits, the number of
subnets For the 255 module IP in 255 scopes, the module IP is considered in this subnet.
Gateway refers to the network number of the module where the current IP address is located. If you connect to devices
such as routers when connecting to the outside network, the gateway is the router IP address, if set up incorrectly, you
can’t access the outside network correctly, if you do not connect to devices such as routers, you do not need to set up,
the default can be.
Reference AT command
Table 7 Station IP /DHCP AT command
AT command
Describe
