Domain Name Resolution (Dns) - Ebyte NE2-D11 Manual

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computer, the module will not work properly.
Subnet mask is mainly used to determine the network number and host number of IP address,
indicate the number of subnets, and judge whether the module is in the subnet.
Subnet mask must be set. Our commonly used Class C subnet mask is 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 within the range of 255, so 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 accessed when connecting to an external network,
the gateway is a route.

4.1.3 Domain Name Resolution (DNS)

Domain name resolution translates a domain name into a network-recognized IP address
through a Domain Name Resolution (DNS) server. In this way, when the IP address of the server is a
non-fixed IP address, you can try to use the domain name resolution function, so that no matter how
the IP address of the server changes, as long as the corresponding domain name remains unchanged,
the setting parameters of NE2-D11 do not need to be changed. The address of the domain name
resolution (DNS) server of the serial port server supports user-defined, which can realize domain
name resolution through the custom domain name resolution server under the abnormal situation of
the router domain name server. When the device resolves the domain name, it will report the
resolution request to the custom domain name resolution (DNS) server, and return the device
connection parameters (generally IP address) after the resolution is completed.
When the destination IP is a domain name, the maximum configurable domain name length is
256 bytes. When the target server cannot be connected, the module will resolve the domain name
continuously and periodically.
In DHCP mode, the domain name resolution (DNS) server address is automatically acquired
(synchronous router domain name resolution address) and cannot be modified.
In static IP mode, the default address of the domain name resolution (DNS) server is114.114.
114.114, or you can customize the domain name resolution server.
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