D-Link GO-DSL-N150 User Manual page 64

User Manual
GO-DSL-N150
NAT
Select this option to setup the NAT (Network Address Translation) function for
your ADSL router.
Virtual Circuit: Enter Virtual Circuit Index that you plan to setup for the NAT
function
NAT Status: This field shows the current status of the NAT function for the
current VC.
Number of IPs: This field is to specify how many IPs are provided by your ISP for
current VC. It can be single IP or multiple IPs.
Note: for VCs with single IP, they share the same DMZ and Virtual servers; for
VCs with multiple IPs, each VC can set DMZ and Virtual servers. Furthermore,
for VCs with multiple IPs, they can define the Address Mapping rules; for VCs
with single IP, since they have only one IP, there is no need to individually define
the Address Mapping rule.
NAT :: DMZ
A DMZ (demilitarized zone) is a host between a private local network and the
outside public network. It prevents outside users from getting direct access to a
server that has company data. Users of the public network outside the company
can access only the DMZ host.
DMZ Host IP Address: Enter the specified IP Address for DMZ host on the LAN
side.
NAT :: Virtual Server
The Virtual Server is the server or server(s) behind NAT (on the LAN), for
example, Web server or FTP server, that you can make visible to the outside
world even though NAT makes your whole inside network appear as a single
machine to the outside world.
Rule Index: The Virtual server rule index for this VC. You can specify 10 rules in
maximum. All the VCs with single IP will use the same Virtual Server rules.
Start & End port number: Enter the specific Start and End Port number you
want to forward. If it is one port only, you can enter the End port number the same
as Start port number. For example, you want to set the FTP Virtual server, you
can set the start and end port number to 21.
Local IP Address: Enter the IP Address for the Virtual Server in LAN side.
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