Ddns; Chapter 17 Ddns; Ddns Overview; What You Can Do In This Chapter - ZyXEL Communications ISG50-ISDN User Manual

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
domain names and their details.
• Use the DDNS Add/Edit screen (see
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
DynDNS
Dynu
No-IP
Peanut Hull
3322
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
Section 17.2 on page
Section 17.2.1 on page
SERVICE TYPES SUPPORTED
Dynamic DNS, Static DNS, and Custom DNS
Basic, Premium
No-IP
Peanut Hull
3322 Dynamic DNS, 3322 Static DNS
C
HAPTER
318) to view a list of the configured DDNS
319) to add a domain name to the
WEBSITE
www.dyndns.com
www.dynu.com
www.no-ip.com
www.oray.cn
www.3322.org
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DDNS

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