ZyXEL Communications ZYWALL USG 20 Manual page 335

Table 93 Configuration > Network > DDNS > Add (continued)
LABEL
Username
Password
DDNS Settings
Domain name
Primary
Binding
Address
Interface
IP Address
Custom IP
Backup
Binding
Address
Interface
ZyWALL USG 20/20W User's Guide
DESCRIPTION
Type the user name used when you registered your domain name. You
can use up to 31 alphanumeric characters and the underscore. Spaces
are not allowed.
For a Dynu DDNS entry, this user name is the one you use for logging
into the service, not the name recorded in your personal information in
the Dynu website.
Type the password provided by the DDNS provider. You can use up to 64
alphanumeric characters and the underscore. Spaces are not allowed.
Type the domain name you registered. You can use up to 255 characters.
Use these fields to set how the ZyWALL determines the IP address that is
mapped to your domain name in the DDNS server. The ZyWALL uses the
Backup Binding Address if the interface specified by these settings is
not available.
Select the interface to use for updating the IP address mapped to the
domain name. Select Any to let the domain name be used with any
interface.
The options available in this field vary by DDNS provider.
Interface -The ZyWALL uses the IP address of the specified interface.
This option appears when you select a specific interface in the Primary
Binding Address Interface field.
Auto - If the interface has a dynamic IP address, the DDNS server
checks the source IP address of the packets from the ZyWALL for the IP
address to use for the domain name. You may want to use this if there
are one or more NAT routers between the ZyWALL and the DDNS server.
Note: The ZyWALL may not determine the proper IP address if
there is an HTTP proxy server between the ZyWALL and the
DDNS server.
Custom - If you have a static IP address, you can select this to use it for
the domain name. The ZyWALL still sends the static IP address to the
DDNS server.
This field is only available when the IP Address is Custom. Type the IP
address to use for the domain name.
Use these fields to set an alternate interface to map the domain nam e to
when the interface specified by the Primary Binding Interface
settings is not available.
Select the interface to use for updating the IP address mapped to the
domain name. Select Any to let the domain name be used with any
interface. Select None to not use a backup address.
Chapter 16 DDNS
335