P-2024 Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
36
Gateway IP Address= N/A
Network Address Translation= SUA Only
Field settings:
a. Service Type: Select RR-TAS or RR-Manager authentication method used by your ISP.
b. Login Server: Enter the IP address of the authentication server if you know it. Otherwise, leave
this field to the default to have the P-2024 automatically obtain this information.
c. My Login Name: Enter the login user name given to you by your ISP
d. My Password: Enter the password associated with the login name.
e. WAN IP Address Assignment: If the ISP did not assign you a fixed (or static) WAN IP address,
select Dynamic, otherwise, select Static.
f. IP Address, Subnet Mask, Gateway IP Address: If you select Static in the WAN IP Address
Assignment field, enter the IP address, subnet mask and gateway device IP address provided by
your ISP.
What is DDNS?
The Dynamic DNS service allows you to map a dynamic IP address to a static hostname, allowing your
computer to be more easily assessable from various locations on the Internet. To use the service, you must first
apply an account from one of the several free DDNS service providers such as
WWW.DYNDNS.ORG.
Without DDNS, you have to tell your users the WAN IP address of your server for them to access. It is
inconvenient for the users if this IP is dynamic which changes. With DDNS supported on the P-2024, you use a
DNS name (e.g.,
www.zyxel.com.tw) supplied by the DDNS service provider to your server (e.g., Web server).
Outside users can always access the web server at www.zyxel.com.tw regardless of whether the WAN IP on the
P-2024 is dynamic or static.
When the ISP assigns the P-2024 a new IP address, the P-2024 updates this IP address to the DDNS server 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 easily accessible.
When do I need the DDNS service?
When you want your internal server to be accessible by using DNS name rather than using a dynamic IP
address, use the DDNS service. The DDNS server maps a dynamic IP address to a static hostname. Whenever
(141 Seiten)
(250 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern