User's Manual

SPEEDLAN 9000 Installation and Operation User Guide
Using the SPEEDLAN 9000 Configurator 3-31
Relay from the main menu. The following page will appear.
Select the check box next to the interface of your choice. Select the appropriate settings for your
DHCP Servers. Click Update when making changes. Click Delete when removing a DHCP Server.
Click Add to add a new DHCP Server.
NAT
Network Address Translation (NAT) occurs when there is a translation among an Internet Protocol (IP
address) used within one network (designated as inside network) to a different IP addresses within
another network (designated as outside network). What differentiates from NAPT? NAPT (or Network
Address Port Translation) not only translates the IP address but also the transport layer port. Thus, if
an inbound packet addressed to port 80 on the NAPT device would be translated and passed to the
private network's Web server. Without port translation, the device has no means of knowing which
host in the private network can pass packets to other devices.
The SPEEDLAN 9000 Configurator allows you to define parameters for each interface rather than
just using one interface for the entire unit/router.