What Is Ddns; When Do I Need Ddns Service; What Is Ddns Wildcard? Does The P-660R-Tx V3 Support Ddns; Wildcard - ZyXEL Communications P-660R-Tx v3 Series Support Notes

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P-660R-Tx v3 Series Support Notes

12. What is DDNS

The Dynamic DNS service allows you to alias a dynamic IP address to a static

hostname, allowing your computer to be more easily accessed from various

locations on the Internet. To use the service, you must first apply an account

from several free Web servers such as http://www.dyndns.org/.

Without DDNS, we always tell the users to use the WAN IP of the P-660R-Tx

v3 to reach our internal server. It is inconvenient for the users if this IP is

dynamic. With DDNS supported by the P-660R-Tx v3, you apply a DNS name

(e.g., www.zyxel.com.tw) for your server (e.g., Web server) from a DDNS

server. The outside users can always access the web server using the

www.zyxel.com.tw regardless of the WAN IP of the P-660R-Tx v3.

When the ISP assigns the P-660R-Tx v3 a new IP, the P-660R-Tx v3 updates

this IP to DDNS server so that the server can update its IP-to-DNS entry. Once

the IP-to-DNS table in the DDNS server is updated, the DNS name for your

web server (i.e., www.zyxel.com.tw) is still usable.

When you want your internal server to be accessed by using DNS name rather

than using the dynamic IP address we can use the DDNS service. The DDNS

server allows to alias a dynamic IP address to a static hostname. Whenever

the ISP assigns you a new IP, the P-660R-Tx v3 sends this IP to the DDNS

server for its updates.

Some DDNS servers support the wildcard feature which allows the hostname,

*.yourhost.dyndns.org, to be aliased to the same IP address as

yourhost.dyndns.org. This feature is useful when there are multiple servers

inside and you want users to be able to use things such as

www.yourhost.dyndns.org and still reach your hostname.

Yes, the P-660R-Tx v3 supports DDNS wildcard that http://www.dyndns.org/

supports. And you can choose to active or inactive this feature on the web

configuration page. When using wildcard, you simply enter

yourhost.dyndns.org on the web configuration page.

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