Using The Dynamic Dns (Ddns) - ZyXEL Communications AMG1202-T10B Support Notes

AMG1202-T10B/AMG1302-T10B
Support Notes

5. Using the Dynamic DNS (DDNS)

 What is DDNS?
The DDNS service, an IP Registry provides a public central database where
information such as email addresses, host names, IPs etc. can be stored and
retrieved. This solves the problems if your DNS server uses an IP associated
with dynamic IPs.
Without DDNS, we always tell the users to use the WAN IP of the
AMG1302-T10B/AMG1202-T10B to access the internal server. It is
inconvenient for the users if this IP is dynamic. With DDNS supported by the
AMG1302-T10B/AMG1202-T10B, you apply a DNS name (e.g.,
www.zyxel.com.tw) for your server (e.g., Web server) from a DDNS server.
The outside users can always access the web server using the
www.zyxel.com.tw regardless of the WAN IP of the P-120/P-1302.
When the ISP assigns the AMG1302-T10B/AMG1202-T10B a new IP, the
AMG1302-T10B/AMG1202-T10B must inform the DDNS server the change of
this IP so that the server can update its IP-to-DNS entry. Once the IP-to-DNS
table in the DDNS server is updated, the DNS name for your web server (i.e.,
www.zyxel.com.tw) is still usable.
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