In the diagram below, the user has registered a domain name with a third-party DDNS service provider (NO-IP) to use the
DDNS function. Once the IP address of the designated WAN interface has changed, the dynamic DNS agent on the router will
inform the DDNS server of the new IP address. The server automatically re-maps the domain name with the changed IP
address. Other hosts or remote users on the Internet can connect to the router by using the domain name regardless of the
changing global IP address.
3.7.1.3 DNS & DDNS Setting
Navigate to the Basic Network > DNS & DDNS > Configuration tab.
The DNS & DDNS setting allows you to create/modify a pre-defined domain name list and setup the Dynamic DNS feature.
3.7.1.4 Create / Edit Pre-defined Domain Name List
The NTC-400 Series Router allows you to customise your pre-defined domain name list. It supports up to a maximum of 128
sets.
Figure 182 – Pre-defined Domain Name List
Click the Add button to display the Pre-defined Domain Name Configuration screen.
Figure 183 – Pre-defined Domain Name Configuration
Item Notes Description
Domain Name Mandatory field. String
format.
Enter a domain name to map to the IP Address.
Value Range: at least 1 character is required.
IP Address Mandatory field. IPv4
format.
Enter an IP Address that the Domain Name is mapped to.
Definition
Enable
Disabled by default. Click  Enable to activate this rule.
Save Button Click Save to save the settings
Undo Button Click Undo to cancel the settings
Back Button When the Back button is clicked the screen will return to the
Dynamic DNS configuration page.
Table 104 – Pre-defined Domain Name Configuration
3.7.1.5 Setup Dynamic DNS
The NTC-400 Series Router allows you to customise your Dynamic DNS settings.
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