Dynamic DNS

Knowledge Base

Dynamic DNS (DDNS)

Dynamic DNS (DDNS) keeps a DNS hostname synchronized with your device’s changing public IP address, allowing consistent remote access even when using dynamic IP services.

Overview

DDNS services update DNS records automatically when your WAN or cellular IP address changes. This is commonly used with cellular SIMs or ISPs that do not provide static IP addresses.

DDNS Parameters

The DDNS menus allow you to select the service provider and define the account and update behavior.

Reference (DDNS Parameters)
Field Description Example / Notes
DDNS Service Select the DDNS provider to use. Dyn, No-IP, Dynv6, or None
DDNS Server Hostname or IP of the DDNS update server. members.dyndns.org
Username Account username for the DDNS service. myaccount@domain.com
Password Password for the DDNS account. ••••••••
Hostname DNS name to update. mydevice.ddns.net
Update Interval How often the device sends IP updates. 300 seconds (5 minutes)
Tip: Choose an update interval that complies with your DDNS provider’s policy (some providers enforce minimum/maximum update frequencies).

How to Change DNS / DDNS Parameters on a WTI Device

  1. Log in to the WTI device via SSH, HTTPS, or console.
  2. Enter the Network menu (Select that option that corresponds with the interface you wish to configure. /n = ETH0  /n 1= ETH1): 
    /N
  3. Configure DNS server(s) as required for your network.
  4. Select the option for DDNS services and populate fields.
  5. Enter the Cellular menu (if using cellular): 
    /CELL
  6. Select Cell Parameters → Dynamic DNS.
  7. Populate the following fields:
    • DDNS Service
    • DDNS Server
    • Username
    • Password
    • Hostname
    • Update Interval
  8. Save the configuration and exit.
  9. Verify updates in the device log or via your DDNS provider’s dashboard.
Related:
For a detailed walk-through of setting up DDNS with the No-IP service please see: DDNS (No-IP) Setup
© Western Telematic Inc. — Knowledge Base

Published on

Tags: