ZyXEL NSA310 User Guide - Page 178
UPnP Port Mapping Screen - jumbo frames
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Chapter 9 Network Table 33 Network > TCP/IP (continued) LABEL DESCRIPTION DNS 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. Dynamic Select the option to have the NSA get a DNS server address automatically. Static Select this option to choose a static DNS server address. Type the DNS server IP address(es) into the fields below. Primary DNS Server Type a primary DNS server IP address. Secondary DNS Server Type a secondary DNS server IP address. HTTP (Web Configurator) Enable Another Web Select this to configure an additional HTTP port for accessing the web configurator. Configuration Port Specify a number in the Port Number field. Jumbo Frames 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. Network Diagnostic Tool Apply Reset 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. 9.5 UPnP Port Mapping Screen Use UPnP (Universal Plug and Play) port mapping to allow access from the WAN to services you select on the NSA. It is recommended that you place the NSA behind an Internet gateway firewall device to protect the NSA from attacks from the Internet (see RAID and Data Protection on page 173 for firewall type suggestions). Many such Internet gateways use UPnP to simplify peer-to-peer 178 Media Server User's Guide