Ddns - ZyXEL Communications Vantage CNM User Manual

Vantage CNM User's Guide
Table 13 Configuration > General > System - ZyWALL (continued)
FIELD
Encryption Mode
Encryption Key
System Name
Domain Name
Administrator Inactivity
Timer
First DNS Server
Second DNS Server
Third DNS Server
Reset to Factory
Default
Reset

4.2.2 DDNS

Use this screen to configure your DNS parameters
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DESCRIPTION
You may choose to encrypt traffic between the ZyXEL device and the Vantage
server here. Choose from None (no encryption), DES or 3DES. The ZyXEL
device must be set to the same encryption mode (and have the same
encryption key) as the Vantage server.
You do not need to add NAT or firewall rules when you encrypt this traffic.
To set the encryption mode on the ZyXEL device, do the following:
Go to CI mode (SMT 24.8 for devices with SMT menus)
Type 'CNM encrymode X' where:
Value of X Encryption Mode
0 None
1 DES
2 3DES
Type an eight-character alphanumeric ("0" to "9", "a" to "z") for DES encryption
and a 24-character alphanumeric ("0" to "9", "a" to "z") for 3DES encryption.
To set the encryption key on the ZyXEL device, type
'CNM encrykey xxxxxxxxx' where 'xxxxxxxxx' is the hexadecimal
secret key number you used in the Vantage server.
Enter a unique name here for the ZyXEL device for identification purposes.
The device name cannot exceed 31 characters.
The Domain Name entry is what is propagated to the DHCP clients on the
LAN side of the target device. If you leave this blank, the domain name
obtained by the device via DHCP from the ISP is used.
Set how long a management session can remain idle before it expires. After it
expires, you have to (default five minutes) log back into the device.
DNS (Domain Name System) is for mapping a domain name to its
corresponding IP address and vice versa. These DNS servers refer to the
device system DNS server. The device uses a system DNS server (in the
order you specify here) to resolve domain names for VPN, DDNS and the
timeserver.
Select From ISP if the ISP dynamically assigns the device DNS server
information. The text box to the right then displays the (read-only) DNS server
IP address that the ISP assigns.
Select User-Defined if you want to assign the DNS server IP address
yourself. Enter the DNS server's IP address in the field to the right or select
from an IP address component BB.
Select None if you do not want to configure device system DNS servers. If
you do not configure a system DNS server, you must use IP addresses when
configuring VPN and DDNS.
Click this button to upload the factory-default configuration file of the device.
Click Reset to begin configuring the screen afresh.
Chapter 4 Configuration > Select Device BB & General