When Do I Need Ddns Service; Wireless Faq; What Is A Wireless Lan - ZyXEL Communications P-2612HNU-Fx Support Notes

P2612HNU Fx Support Notes
Without DDNS, we always tell the users to use the WAN IP of the P-2612HNU-Fx to
reach our internal server. It is inconvenient for the users if this IP is dynamic. With
DDNS supported by the device, 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-2612HNU-Fx.
When the ISP assigns the device (P-2612HNU-Fx) a new IP, the device updates this IP
to 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 usable.

When do I need DDNS service?

When you want your internal server to be accessed by using DNS name rather than
using the dynamic IP address we can use the DDNS service. The DDNS server allows
to alias a dynamic IP address to a static hostname. Whenever the ISP assigns you a
new IP, the device sends this IP to the DDNS server for its updates.

Wireless FAQ

What is a Wireless LAN?

Wireless LANs provide all the functionality of wired LANs, without the need for
physical connections (wires). Data is modulated onto a radio frequency carrier and
transmitted through the ether. Typical bit-rates are 11Mbps and 54Mbps, although in
All contents copyright (c) 2010 ZyXEL Communications Corporation.
82