Chapter 8. Configuring DDNS
Internet Security Router User
’s Manual
42
Internet
ISR
HTTP DDNS Server
(DynDNS, TokyoDNS)
DynDNS
sl1000.homeunix.com
TokyoDNS
sl1000.dns-tokyo.jp
Figure 8.2. Network Diagram for HTTP DDNS
Whenever IP address of the configured DDNS interface changes, DDNS update is sent to the specified DDNS
service provider. Internet Security Router should be configured with the DDNS username and password that
are obtained from the DDNS service provider.
8.1
DDNS Configuration Parameters
Table 8.1 describes the configuration parameters available for DDNS service.
Table 8.1. DDNS Configuration Parameters
Field
Description
DDNS State
Enable
Click on this radio button to enable the DDNS Service
Disable
Click on this radio button to disable the DDNS Service
DDNS Type
– select a DDNS service type: HTTP or RFC-2136 DDNS
HTTP DDNS
Click this radio button if HTTP DDNS is desired.
RFC-2136 DDNS
Click this radio button if RFC-2136 DDNS is desired.
DNS Zone Name
Enter the registered domain name provided by your ISP into this field. (Note: The host name of Internet
Security Router has to be configured in the System Information Setup page properly. For example, If the
host name of your Internet Security Router is
“host1” and the DNS Zone Name is “yourdomain.com”, The
fully qualify domain name (FQDN) is
“host1.yourdomain.com”.)
RFC-2136 DDNS Specific Settings
Primary/Secondary DNS Server [For RFC-2136 DDNS only]
Enter the IP addresses of the Primary and secondary DNS Servers in these fields. The IP addresses of
the primary and secondary DNS servers are inherited from the settings in the WAN configuration page.
Unless you want to change these settings for WAN, leave them as they are.