Chengdu Ebyte Electronic Technology Co.,Ltd.
NA111 User Manual
Copyright ©2012–2021
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Chengdu Eyrth Electronic Technology Co., Ltd
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the tedious step of setting IP address. Suitable for scenarios where there is no requirement for IP,
nor is ip required to correspond to module one by one.
Pros: Devices with DHCP Server, such as access routers, can communicate directly, reducing
the hassle of setting up IP address gateways and subnet masks.
Cons: Access to a DHCP Serve-free network, such as directly connected to a computer, the
module will not work properly.
Subnet masks are mainly used to determine the network number and host number of IP
addresses, indicating the number of subnets and determining whether the module is a flag within the
subnet.
Subnet mask must be set, we commonly use class C subnet mask: 255.255.255.0, network
number is the first 24 bits, host number is the last 8 bits, the number of subnets is 255, module IP in
the range of 255, the module IP is considered in this subnet.
A gateway is the network number of the network on which the module's current IP address is
located. If you connect to a device such as a router when you connect to an external network, the
gateway is the route.
4.1.3 DNS server address
DNS servers are primarily used to convert domain names to NETWORK-recognized IP
addresses. DNS server addresses are customizable and enable domain name resolution in cases
where the local domain name server is abnormal. The device reports resolution requests to a custom
DNS server when the domain name is resolved, making it easy and efficient to use.
In DHCP mode, DNS server addresses are automatically acquired and cannot be modified.
In static IP mode, the DNS server factory address defaults to 114.114.114.114.
4.1.4 Restore factory settings
The device's Restore pin is pressed continuously for about 5 seconds until the device restarts
and the device is restarted and the factory settings are restored.
The following table parameters are modified to factory default parameters when factory settings
are restored.
Table 4- 1 partial factory default parameters
project
The default parameter
IP address
192.168.3.7
The default local port
8887
