Chapter 29 SMT Menu 1 - General Setup

Table 200 Menu 1.1.1: DDNS Edit Host (continued)

FIELD

DESCRIPTION

IP Address

You can select Yes in either the Let DDNS Server Auto Detect field (recommended)

Update Policy:

or the Use User-Definedfield, but not both.

 

With the Let DDNS Server Auto Detect and Use User-Defined fields both set to No,

 

the DDNS server automatically updates the IP address of the host name(s) with the

 

ZyWALL’s WAN IP address.

 

DDNS does not work with a private IP address. When both fields are set to No, the

 

ZyWALL must have a public WAN IP address in order for DDNS to work.

 

 

Let DDNS

Only select this option when there are one or more NAT routers between the

Server Auto

ZyWALL and the DDNS server. Press [SPACE BAR] to select Yes and then press

Detect

[ENTER] to have the DDNS server automatically detect and use the IP address of the

 

NAT router that has a public IP address.

 

Note: The DDNS server may not be able to detect the proper IP

 

address if there is an HTTP proxy server between the ZyWALL

 

and the DDNS server.

 

 

Use User-

Press [SPACE BAR] to select Yes and then press [ENTER] to update the IP address

Defined

of the host name(s) to the IP address specified below.

 

Only select Yes if the ZyWALL uses or is behind a static public IP address.

 

 

Use WAN IP

Enter the static public IP address if you select Yes in the Use User-Definedfield.

Address

 

When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to save your configuration, or press [ESC] at any time to cancel.

The IP address updates when you reconfigure menu 1 or perform DHCP client renewal.

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ZyWALL 2WG User’s Guide