ZyXEL Communications NSA221 User Manual page 165

Table 29 Network > TCP/IP (continued)
LABEL
IP Address
IP Subnet Mask Type an IP subnet mask in this field.
Default
Gateway
DNS
Dynamic
Static
Primary DNS
Server
Secondary
DNS Server
HTTP (Web Configurator)
Enable Another
Web Configuration
Port
Jumbo Frames
Network
Diagnostic Tool
Apply
Reset
NSA221 User's Guide
DESCRIPTION
Type an IP address in this field.
Type a default gateway address in this field.
DNS (Domain Name System) is for mapping a domain name to its
corresponding IP address and vice versa. If you have the IP
address(es) of the DNS server(s), enter them.
Select the option to have the NSA get a DNS server address
automatically.
Select this option to choose a static DNS server address. Type the
DNS server IP address(es) into the fields below.
Type a primary DNS server IP address.
Type a secondary DNS server IP address.
Select this to configure an additional HTTP port for accessing the web
configurator. Specify a number in the Port Number field.
Jumbo frames improve network performance. You must have a 1
Gbps (Gigabit Ethernet) network that supports jumbo frames. Select
the largest size of frame that all of your network devices (including
computer Ethernet cards and switches, hubs, or routers) support.
When enabled, you can choose between 4 KB, 8 KB, and 9 KB frame
sizes.
Note: If you enable jumbo frames on the NSA in a network that
does not support them, you will lose access to the NSA. If
this occurs, you will have to restore the factory default
configuration. Push the RESET button on the NSA's rear
panel and release it after you hear a beep.
Use this section to test the network connection to a particular IP
address or domain name. Select an address or type it into the field.
Then click Ping to have the NSA send a packet to test the network
connection.
• Successfully pinged host - The NSA is able to "ping" the host,
the network connection is OK.
• Unable to ping host - The NSA is able to "ping" the selected
host.
Click this to save your TCP/IP configurations. After you click Apply,
the NSA restarts. Wait until you see the Login screen or until the
NSA fully boots and then use the NAS Starter Utility to rediscover it.
Click this to restore your previously saved settings.
Chapter 8 Network
165