Intellinet Network Solutions UNC-W10 用户手册

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WIRELESS NETWORK IP CAMERA User’s Guide 
 
 
 
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H.    Dynamic Domain Name Server (DDNS) 
 
Your internet Service Provider (ISP) provides you at least one IP address which you use to connect 
to the Internet. The address you get may be static, meaning it never changes, or dynamic, meaning 
it’s likely to change periodically. Just how often it changes, depends on your ISP. A dynamic IP 
address complicates remote access since you may not know what your current WAN IP address is 
when you want to access your network over the Internet. The solution to the dynamic IP address 
problem comes in the form of a dynamic DNS service. 
 
The Internet uses DNS servers to lookup domain names and translates them into IP addresses. 
Domain names, such as www.intellinte-network.com , are just easy to remember aliases for IP 
addresses. A dynamic DNS service is unique because it provides a means of updating your IP 
address so that your listing will remain current when your IP address changes. There are several 
excellent DDNS services available on the Internet and best of all they’re free to use. Two such 
several excellent DDNS services are www.ods.org (ODS) and www.DynDNS.org. You’ll need to 
register with the service and set up the domain name of your choice to begin using it. Please refer 
the the home page or the service for detailed instructions. 
 
A DDNS service works by uploading your WAN IP address to its servers periodically, your 
gateway-router may support DDNS directly, in which case you can enter your DDNS account 
information into your router and it will update the DDNS servers automatically when your IP 
address changes. Please consult your router’s documentation for more information. If your router 
does not support DDNS, you can run a small client utility on any PC on your network which will 
perform the updating. The client utility is usually provided for free by the service. 
Check the service’s web page for further information, terms and conditions.