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Chapter 30 SMT Menu 1 - General Setup
ZyWALL 2WG User’s Guide
540
The IP address updates when you reconfigure menu 1 or perform DHCP client renewal.
IP Address
Update Policy:
You can select
Yes
in either the
Let DDNS Server Auto Detect
field (recommended)
or the
Use User-Defined
field, 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
Server Auto
Detect
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 User-
Defined
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 WAN IP
Address
Enter the static public IP address if you select
Yes
in the
Use User-Defined
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 198
Menu 1.1.1: DDNS Edit Host (continued)
FIELD
DESCRIPTION