ZyXEL Communications 320W manual Using the Dynamic DNS Ddns

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P320W Support Notes

Using the Dynamic DNS (DDNS)

1. What is DDNS?

The DDNS service, an IP Registry provides a public central database where information such as email addresses, hostnames, 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 Prestige to access the internal server. It is inconvenient for the users if this IP is dynamic. With DDNS supported by the Prestige, 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 Prestige.

When the ISP assigns the Prestige a new IP, the Prestige 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.

The DDNS server stores password-protected email addresses with IPs and hostnames and accepts queries based on email addresses. So, there must be an email entry in the Prestige menu 1.

The DDNS servers the Prestige supports currently is WWW.DYNDNS.ORG where you apply the DNS from and update the WAN IP to.

•Setup the DDNS

•Before configuring the DDNS settings in the Prestige, you must register an account from the DDNS server such as WWW.DYNDNS.ORG first. After the registration, you have a hostname for your internal server and a password using to update the IP to the DDNS server.

•Go to menu Maintenance > System > Dynamic DNS to configure DDNS

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All contents copyright (c) 2005 ZyXEL Communications Corporation.

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Contents Prestige 320W P320W Support Notes Ireless FAQ Trouble Shooting Ethernet connection Internet ConnectionSetting up the Prestige router TCP/IP InstallationTCP/IP Configuration P320W Support Notes P320W Support Notes Configure an Internal Server Behind SUA Smtp Service Port NumberUsing the Dynamic DNS Ddns Snmp Overview Network Management Using SnmpP320W Support Notes SNMPv1 Operations Trap GetGetNext SetZyXEL Snmp Implementation Get Community Configure the Prestige for SnmpTraffic Redirect on LAN port Using Prestige traffic redirectSet Community What is UPnP Using Universal Plug n Play UPnPUsing UPnP in ZyXEL devices Go to Management-UPnP, check Enable UPnP service P320W Support Notes Finally, your video conversation is achieved What is Infrastructure mode? Infrastructure ModeP320W Support Notes Configuration Wireless Station to Infrastructure mode P320W Support Notes Double click on the AP you want to associated with MAC Filter Overview Wireless MAC Address FilteringZyXEL MAC Filter Implementation Configure the Wlan MAC FilterIntroduction WEP ConfigurationP320W Support Notes Setting up the Access Point Setting up the Station Key settingsP320W Support Notes P320W Support Notes Ieee 802.1x Introduction IeeeSupplicant AuthenticatorAuthentication Server Authentication Port State and Authentication Control Re-Authentication Eapol Exchange between 802.1x Authenticator and Supplicant P320W Support Notes Using WEB Configuration Using External Radius Authentication Server P320W Support Notes Site Survey Survey on Site PreparationP320W Support Notes P320W Support Notes What is the P320W 802.11g Wireless Firewall Router? FAQDoes the Prestige support PPPoE? What is PPPoE?Will the P320W work with my Internet connection? What do I need to use the Prestige?Which Internet Applications can I use with the Prestige? How do I know I am using PPPoE?Why does my provider use PPPoE? How can I configure the Prestige?How does e-mail work through the Prestige? How fast can the data go? What Dhcp capability does the Prestige support?Your ISP checks the MAC address Your ISP checks the Host Name What is Ddns What is BOOTP/DHCPWhen do I need Ddns service? What are the basic types of firewalls? What is a network firewall?What makes P320W secure? What kind of firewall is the P320W? What is Denials of Service DoS attack?What is Land attack? What is Ping of Death attack?What is Teardrop attack? What is SYN Flood attack?What are the advantages of Wireless LANs? What is IP Spoofing attack?What is a Wireless LAN? What is an Access Point? What are the disadvantages of Wireless LANs?Where can you find wireless 802.11 networks? What is 802.11g? What is Ieee 802.11?What is 802.11b? What is 802.11a?Is it possible to use products from a variety of vendors? What is Wi-Fi?Does the 802.11 interfere with Bluetooth devices? Can radio signals pass through walls?Whats the difference between a Wlan and a WWAN? What is Ad Hoc mode?What is Infrastructure mode? How many Access Points are required in a given area?What is Server Set ID SSID? What is Direct-Sequence Spread Spectrum Technology DSSS?What is Frequency-hopping Spread Spectrum Technology FHSS? Why the 2.4 Ghz Frequency range?What is a WEP key? What is an ESSID?What is WEP? What is the difference between 40-bit and 64-bit WEP?Open System What is Wireless Sniffer?Can the Ssid be encrypted? What are Insertion Attacks?What is RADIUS? What is 802.1x?What is AAA? Why cannot access the Internet? Why cannot access the Prestige from my computer?Your ISP checks the MAC address Application Outgoing Connection Incoming Connection Unable to run applicationsZyXEL SUA Supporting Table NAT-T P320W Support Notes