sâmbătă, 15 decembrie 2012

How To Setup DDNS on a Linksys Router - Computers - Networks

This article will show you how to setup and configure the Dynamic DNS feature on a Linksys wireless router. This article is designed for CCNA students, network engineers, and anyone looking to configure DDNS feature on a Linksys wireless router.

DNS servers allow you to map a domain name (, en.wikipedia.org, ciscoccnabootcamp.com...) to an IP address. Therefore, instead of using an IP address (http ://74.22.33.1, ftp://51.12.22.35...) to access a web server for example, you can use a domain to do this.

Now, assume that you want to deploy a web server inside your home network. In addition, users should access this web server from the Internet using the URL http :// To do this you have to:

You may ask this question: "Why should I buy a static public IP address"? Because if you did not so, you must change the DNS mapping each time the router's public IP address changes. The router's public IP address changes every time it establishes connection to the Internet.

To avoid this, you can use the Dynamic DNS (DDNS) feature. Therefore, you do not have to buy a static public IP address for your router. What you have to do is to create an account at one of the following sites, and save your credentials along with the domain name on your Linksys router: http ://dyndns.org, and http ://tzo.com.

Read the following instructions in order to configure the Dynamic DNS (DDNS) feature:



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