ZyXEL ISG50-PSTN User Guide - Page 317
DDNS Overview
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CHAPTER 17 DDNS 17.1 DDNS Overview Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP address. 17.1.1 What You Can Do in this Chapter • Use the DDNS screen (see Section 17.2 on page 318) to view a list of the configured DDNS domain names and their details. • Use the DDNS Add/Edit screen (see Section 17.2.1 on page 319) to add a domain name to the ISG50 or to edit the configuration of an existing domain name. 17.1.2 What You Need to Know DNS maps a domain name to a corresponding IP address and vice versa. Similarly, dynamic DNS maps a domain name to a dynamic IP address. As a result, anyone can use the domain name to contact you (in NetMeeting, CU-SeeMe, etc.) or to access your FTP server or Web site, regardless of the current IP address. Note: You must have a public WAN IP address to use Dynamic DNS. You must set up a dynamic DNS account with a supported DNS service provider before you can use Dynamic DNS services with the ISG50. When registration is complete, the DNS service provider gives you a password or key. At the time of writing, the ISG50 supports the following DNS service providers. See the listed websites for details about the DNS services offered by each. Table 99 DDNS Service Providers PROVIDER SERVICE TYPES SUPPORTED DynDNS Dynamic DNS, Static DNS, and Custom DNS Dynu Basic, Premium No-IP No-IP Peanut Hull Peanut Hull 3322 3322 Dynamic DNS, 3322 Static DNS WEBSITE www.dyndns.com www.dynu.com www.no-ip.com www.oray.cn www.3322.org Note: Record your DDNS account's user name, password, and domain name to use to configure the ISG50. After, you configure the ISG50, it automatically sends updated IP addresses to the DDNS service provider, which helps redirect traffic accordingly. ISG50 User's Guide 317
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