Ddns; Chapter 15 Ddns; Ddns Overview; What You Can Do In The Ddns Screens - ZyXEL Communications ZyWall USG 2000 User Manual

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H A P T E R

15.1 DDNS Overview

Dynamic DNS (DDNS) services let you use a domain name with a dynamic IP
address.

15.1.1 What You Can Do in the DDNS Screens

• Use the DDNS screen (see
configured DDNS domain names and their details.
• Use the DDNS Add/Edit screen (see
domain name to the ZyWALL or to edit the configuration of an existing domain
name.
• Use the DDNS Status screen (see
of the ZyWALL's DDNS domain names.

15.1.2 What You Need to Know About DDNS

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 ZyWALL. When registration is
complete, the DNS service provider gives you a password or key. At the time of
writing, the ZyWALL supports the following DNS service providers. See the listed
websites for details about the DNS services offered by each.
Table 82 DDNS Service Providers
PROVIDER
DynDNS
Dynu
ZyWALL USG 2000 User's Guide
Section 15.2 on page
Section 15.3 on page
SERVICE TYPES SUPPORTED
Dynamic DNS, Static DNS, and Custom DNS www.dyndns.com
Basic, Premium
266) to view a list of the
Section 15.2.1 on page
270) to view the status
WEBSITE
www.dynu.com
15

DDNS

268) to add a
265