ZyXEL Communications ZyXEL ZyWALL 35 - Manual (Page 426)

ZyWALL 35 User’s Guide
424 Chapter 26 SMT Menu 1 - General Setup
IP Address
Update Policy:
You can select Yes in either the DDNS Server Auto Detect IP Address field
(recommended) or the Use Specified IP Address field, but not both.
With the DDNS Server Auto Detect IP Address and Use Specified IP Address
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.
DDNS Server
Auto Detect IP
Address
Only select this option when there are one or more NAT routers between the ZyWALL
and the DDNS server. Press [SPACE BAR] to select Yes and then press [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 Specified
IP Address
Press [SPACE BAR] to select Yes and then press [ENTER] to update the IP address
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 IP Address Enter the static public IP address if you select Yes in the Use Specified IP Address
field.
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.
Table 153 Menu 1.1.1: DDNS Edit Host (continued)
FIELD DESCRIPTION