Nat And Dmz Configuration Instances - LevelOne GBR-4001 User Manual

Chapter 7 Advanced Configuration
7.1.5

NAT and DMZ configuration instances

This section describes the specific instances of NAT and DMZ configuration. Includes: Static
NAT mapping instances, instances with the type of NAT rules as EasyIP, One2One.
I. Instances of Static NAT mapping configuration
Intranet computer 192.168.1.99 starts the TCP80 port services, and wants to access this service
through WAN1 port 80. It's configuration is as shown in Figure 7_7.
Figure 7_7 Port Forwarding Settings
II. EasyIP configuration instances
An Internet café uses a single line for Internet access, and the ISP has assigned 8 addresses for this
line: 218.1.21.0/29 -218.1.21.7/29, where 218.1.21.1/29 is the gateway address of the line, and
218.1.21.2/29 is the IP address of WAN1 port of the device. Note that 218.1.21.0/29 and
218.1.21.7/29 are respectively the related subnet number and broadcast address, which cannot be
used.
Now, Game B Zone (IP address range: 192.168.1.10/24-192.168.1.100/24) wishes to use
218.1.21.3/29 as a NAT mapping address for accessing to the Internet through the WAN port.
Configuration steps are follows:
The first step is to enter the Advanced configuration -> NAT and DMZ configurations ->NAT
rules page, and click <Add new entry>.
The second step is to enter the NAT rules configuration page, and fill in "Game Zone" in the
http://www.level1.com Page 48