Supplementary Document

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4-6-1. Network Types
4-6-1-1. DHCP
An IP address is automatically assigned by the DHCP server, which automatically assigns the IP address
and other parameters to new devices.
4-6-1-2. STATIC
IP address, Subnet Mask, Gateway, and DNS are manually assigned by the user.
 IP ADDRESS: The fixed IP address of the NSL unit.
 SUBNET MASK: The subnet mask for the LAN.
 GATEWAY: The IP address of the Gateway.
 DNS (PRIMARY) The primary address of Domain Name Server
 DNS (SECINDARY): The secondary address of Domain Name Server
NOTE
Unless DNS is properly set, the DDNS and the e-mail features will not work.
4-6-2. DDNS
DDNS (Dynamic Domain Name System) allows a DNS name to be constantly synchronized with a dynamic
IP address. It allows using a dynamic IP address to be associated with a static domain name.
Once the setting is completed, the DDNS address will be:
http://hostname.ddns.specoddns.net
For example, if you enter the host name as “NS”, then the address will be:
http://NS.ddns.specoddns.net
Select NETWORK>DDNS. The menu displays as below.
Figure 4.6.2. NETWORK Setup Screen – DDNS
Table 4.6.2. DDNS
Item
Description
ENABLE DDNS
Turn DDNS on/off
HOST NAME
This item allows the user to setup a domain name manually,
using virtual keyboard displays as shown.
SUBMIT/UPDATE
When manual host name input is done, move the cursor to this
item and select ON to submit the settings.
ezDDNS
Enable/disable ezDDNS to register the host name automatically.