Subnet Mask/Ip Address - Ebyte NA111-A User Manual

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It can also be opened through the Open Web Configuration button of the configuration software.
[Note] If the port number is modified, the port number should be added to the address input field. For example,
if you modify the web page access port to 8080, you need to enter 192.168.3.7:8080 in the address bar to connect to
the web page configuration.

4.2.2 Subnet mask/IP address

The IP address is the identification of the module in the local area network and is unique in the local area
network. Therefore, it cannot be duplicated with other devices on the same local area network. There are two ways
to obtain the IP address of the module, static IP and DHCP.
(1) Static IP: Static IP needs to be set manually by the user. In the process of setting, pay attention to writing IP,
subnet mask and gateway at the same time. Static IP is suitable for scenarios where IP and device statistics are
required and one-to-one correspondence is required.
Advantages: Access to devices that cannot be assigned IP addresses can be searched through the broadcast
mode of the entire network segment, which is convenient for unified management;
Disadvantages: Different network segments in different LANs, resulting in normal TCP/UDP communication.
(2) Dynamic DHCP: The main function of DHCP is to dynamically obtain the IP address, gateway address,
DNS server address and other information from the gateway host, thereby eliminating the tedious steps of setting
the IP address. It is suitable for scenarios where there is no requirement for IP, and there is no mandatory
one-to-one correspondence between IP and modules.
Advantages: devices with DHCP Server such as access routers can communicate directly, reducing the trouble
of setting IP address gateway and subnet mask.
Disadvantage: Connecting to a network without DHCP Server, such as direct connection with a computer, the
module will not work properly. The subnet mask is mainly used to determine the network number and host number
of the IP address, to indicate the number of subnets, and to determine whether the module is in the subnet. The
subnet mask must be set. Our commonly used class C subnet mask: 255.255.255.0, the network number is the first
24 bits, the host number is the last 8 bits, the number of subnets is 255, and the module IP is in the range of 255
within this subnet, the module IP is considered to be in this subnet. Gateway refers to the network number of the
network where the current IP address of the module is located. If a device such as a router is connected to the
external network, the gateway is the router
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