ZyXEL Communications 320W manual When do I need DDNS service?, What is DDNS wildcard?

P320W Support Notes

When the ISP assigns the Prestige a new IP, the Prestige 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 Prestige sends this IP to the DDNS server for its updates.

What DDNS servers does the Prestige support?

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

What is DDNS wildcard?

Some DDNS servers support the wildcard feature which allows the hostname, *.yourhost.dyndns.org, to be aliased to the same IP address as yourhost.dyndns.org. This feature is useful when there are multiple servers inside and you want users to be able to use things such as www.yourhost.dyndns.org and still reach your hostname.

Does the Prestige support DDNS wildcard?

Yes, the Prestige supports DDNS wildcard that WWW.DynDNS.ORG supports. When using wildcard, you simply enter yourhost.dyndns.org in the Host field in Dynamic DNS page.

Why can't I use video conferencing with MSN 4.6?

This is because MSN 4.6 requires support of UPnP (Universal plug n’ play). To be able to use MSN through Prestige, you have to enable the UPnP feature under Management-> UPNP and Check the enable UPnP check box and press "Apply button" to make it active.

Should I create any firewall rule by myself to allow incoming traffic when NAT is used?

Built-in firewall function is supported in P320W. When a session is initiated from a user located in P320W's LAN network, incoming traffic will be allowed by Stateful Inspection mechanism. However, if the session is initiated from WAN side and there is no related access rule for the incoming traffic, the

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