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DHCP Lease Time — Specify how long (in seconds) an IP address is valid for a computer
before a new IP address is issued. Normally, there is no need to change this value.
In the DHCP IP Address Reserving panel, you can reserve IPs for a specic computer.
Auto Setup — Select to assign a particular IP to your computer.
Physical Address — As an option to “Auto Setup,” enter the MAC address of the network card
installed in the computer to assign a particular IP to it and click “Add,” which will display a
Current Address Reserving Table showing information about current address reserving. To
remove a listing from the table, select it and click “Delete.”
Apply — Click “Apply,” then “Save” to set and save any changes.
3.4 Routing
If the router is connected to more than one network, it may be necessary to set up a static
route between them. A static route is a pre-determined pathway that network information must
travel in order to reach a specic host or network.
Type / Target / Mask / Gateway — Fill in these elds required by this Static Routing function.
Add — Click to add a new static routing entry and display the Current Routing Table, which
shows the valid routing paths in the router. To remove a listing from the table, select it and
click “Delete.”
Apply — Click “Apply,” then “Save” to set and save any changes.
3.5 NAT
Network Address Translation (NAT) allows multiple users at your local site to access the
Internet through a single public IP address. NAT provides rewall protection from hacker attacks
and has the exibility to allow you to map private IP addresses to public IP addresses for key
services such as Web and FTP sites.
3.5.1 DMZ Host Setup
The DMZ screen allows one local user to be exposed to the Internet for use of a special-
purpose service such as Internet gaming and videoconferencing. DMZ hosting forwards all
the ports for one PC at the same time.
DMZ — Select to activate the function, then enter the host IP in the eld to the right.
Apply — Click “Apply,” then “Save” to set and save any changes.
3.5.2 FTP Private Port
This enables a user to set up an FTP server which is not using the standard Port 21.
Port Number — Select to activate the function, then ll in the eld to the right.