User's Manual

SPEEDLAN 9000 Installation and Operation User Guide
Basics of IP Addressing 5-11
Diagram of Incoming NAT
Incoming NAT allows you to specify ports on the private network (Building B) that you would like to
be available on the public network (Building A and the Internet). For example, if a web server (IP
Address 10.0.0.3) is being hosted on a private network in Building B, you can create a pair that will
specify that all requests on the public IP address, Port 80, be forwarded to IP Address 10.0.0.3 on
the private IP address, Port 80.
Inbound Port 80 request is re-addressed
to Private address 10.0.0.3. Then, it is
forwarded across the private network
Internet
Ethernet
Router
204.101.20.1
Private Address on Local Interface
10.0.0.1
10.0.0.2
10.0.0.4
Ethernet
Web Server
10.0.0.3
Public Address on Remote Interface
204.101.20.3
Building A Building B
SPEEDLAN 9000 Router
204.101.20.0
SPEEDLAN 9000 Router