Dynamic DNS

Summary

Dynamic DNS (DDNS or DynDNS) is a method of automatically updating a name server in the Domain Name System (DNS), often in real time, with the active DDNS configuration of its configured hostnames, addresses or other information. This chapter is a summary of the Dynamic DNS function in RUT routers.

DDNS

By default, an unconfigured DDNS instance will be present in the DDNS configuration tab. Below is a picture of this instance. You can create more DDNS instances if you wish to do so by typing in a New configuration name and clicking the Add new button.

DDNS Configuration

To configure a DDNS instance, click the Edit button located next to it. Below is a screen capture of the default DDNS configuration MyDDNS and a table of explanations.

Field name	Value	Description
Enable	yes | no; Default: no	Toggles the DDNS instance ON or OFF
Use HTTPS	yes | no; Default: no	Enables SSL data encryption
Status	string; Default: N/A	Displays the status of the DDNS instance
Service	3322.org | changeip.com | cloudflare.com | ddns.com.br | dnsdynamic.org | dnsexit.com | dnsmax.com | dnsomatic.com | duiadns.net | dyndns.org | easydns.com | free.editdns.net | freedns.afraid.org | he.net | loopia.se | mydns.jp | mythic-beasts.com | namecheap.com | no-ip.com | no-ip.pl | noip.com | ovh.com | selfhost.de | spdns.de | thatip.com | twodns.com | zoneedit.com | -- custom -- | host | ip; Default: 3322.org	Dynamic DNS service provider
Hostname	host; Default: yourhost.example.org	Domain name that will be linked with dynamic IP address
User name	string; Default: your_username	Name of your user's account of the DDNS service
Password	string; Default: " "	Password of your user's account of the DDNS service
IP source	Public | Private | Custom; Default: Custom	Allows you to select a specific RUT interface and then send the IP address of that interface to the DDNS server. So if, for example, your RUT has a Private IP (i.e. 10.140.56.57) on its WAN (3G interface), then you can send this exact IP to DDNS server by selecting Private
Network	WAN | LAN | WAN3 | PPP | WAN2; Default: WAN	Source network
IP renew interval (min)	integer[5..600000]; Default: 10	Time interval to check if the IP address of the device has changed
Force IP renew (min)	integer[5..600000]; Default: 472	Time interval to force IP address renewal

See also

DDNS Configuration Examples - Dynamic DNS configuration examples for specific providers.