Allied Telesis AlliedWare NetScreen Routers - Manual

C613-16100-00 REV A www.alliedtelesis.com
How To |
Allied Telesis routers feature a dynamic DNS client, which allows you to host web domains,
FTP servers, and mail servers behind a dynamically-assigned public IP address that periodically
changes. The dynamic DNS client works with the service provided by DynDNS.com
(
www.dyndns.com ). When the public IP address changes, the client notifies DynDNS.com of
the change.
What information will you find in this document?
This How To Note begins with essential background information, in the following sections:
• “DynDNS.com hostnames” on page 2
• “DNS server assignment” on page 3
Then it describes the example configuration, in the following sections:
• “Configuring dynamic DNS” on page 3 :
•
“Network diagram” on page 4
•
“Configure the network and firewall” on page 4
• “Configure dynamic DNS” on page 7
• “Check dynamic DNS configuration” on page 9
• “Troubleshooting” on page 11
Which products and software version does it apply to?
This configuration applies to the following Allied Telesis routers, running Software Version
2.9.1 or later:
• AR415S
• AR440S, AR441S, AR442S
• AR750S, AR750S-DP, AR770S
Use Dynamic DNS To Allow You To Host Servers
Behind A Dynamically-Assigned Public IP Address