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Allied Telesis AlliedWare NetScreen Routers User Manual

Page 8

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Use Dynamic DNS To Allow You To Host Servers Behind A Dynamically-Assigned Public IP Address

8

The router sends dynamic DNS updates to DynDNS.com. If necessary, you can specify the
port number that it uses for these. The DynDNS.com server listens to the following TCP
ports:

80 (for HTTP)—the default

8245 (an alternative for HTTP)

443 (for HTTPS)

To use TCP port 8245, use the command:

set ddns port=8245

To use TCP port 443, use the command:

set ddns port=443

Wildcard hosts allow DNS look-ups for any hosts on your registered domain, even if
DynDNS.com and the DNS server do not know about those specific hosts.

For example, if the domain name you registered with DynDNS.com is:

mysite.dyn-o-saur.com

and wildcard hosts are enabled, the DNS look-ups to any-hostname.mysite.dyn-o-saur.com
resolve to the current IP address of mysite.dyn-o-saur.com.

You must also enable wildcard hosts on DynDNS.com.

To enable wildcard hosts, use the command:

set ddns wildcard=on

Specify the username and password that you have registered with DynDNS.com.

set ddns user=username-for-DynDNS password=password-for-DynDNS

4.

Specify the TCP port, if necessary

5.

Enable wildcard host look-ups

6.

Specify the username and password