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Document version: V1.2
The following table describes the parameters displayed on this page.
Parameter description
Parameter
Description
DDNS
Used to enable or disable the DDNS function.
ISP
Specifies the DDNS service provider.
User Name
Specify the user name and password registered on a DDNS service provider's website for
logging in to the DDNS service.
Password
Domain Name
Specifies the domain name registered on the DDNS service provider’s website. If this
field is invisible after choosing the service provider, it is not required.
Connection Status
Specifies the current connection status of the DDNS service.
Example of enabling internet users to access LAN resources using a domain name
Scenario: You have set up an FTP server within your LAN.
Goal: Open the FTP server to internet users and enable family members who are not at home to
access the resources of the FTP server from the internet with a domain name.
Solution: You can configure the DDNS plus port mapping functions to reach the goal.
Assume that the information of the FTP server includes:
− IP address: 192.168.0.136
− MAC address of the host: D4:61:DA:1B:CD:89
− Service port: 21
− Information of the registered DDNS service:
•
Service provider: oray.com
•
User name: JohnDoe
•
Password: JohnDoe123456
•
Domain name: o2849z7222.zicp.vip
Ensure that the router obtains an IP address from the public network. This function may not work on a
host with an IP address of a private network or an intranet IP address assigned by ISPs that start with
100. Common IPv4 addresses are classified into class A, class B and class C. Private IP addresses of class
A range from 10.0.0.0 to 10.255.255.255. Private IP addresses of class B range from 172.16.0.0-
172.31.255.255. Private IP addresses of class C range from 192.168.0.0-192.168.255.255.
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