WESM zl Management and Configuration Guide WT.01.03 and greater

8-20
Configuring Network Address Translation (NAT)
Planning the NAT Configuration
Figure 8-8. Outside Destination NAT with Port Translation on a Sample Network
In Figure 8-8, the VLAN for wireless stations is the inside interface, so the Web
server is an outside device. Therefore you must set up inside destination NAT.
You could alternatively define the Web server’s VLAN as the inside interface,
in which case you would configure outside destination NAT.
When you record the local address for destination NAT, identify the destina-
tion device’s IP address as it appears on the source network. On the wireless
network, the Web server’s IP address appears to be 10.1.1.1. For this sample
network, you would record 10.1.1.1 for the local address, as shown in
Table 8-4.
When you record the global address for destination NAT, identify the inside
device’s IP address as it appears in the destination network. For the sample
network, the Web server’s actual IP address is 192.168.1.25. You would,
therefore, record 192.168.1.25 as the global address.
Because the sample network is also using port address translation, you should
record the port for the translated traffic, as shown in Table 8-4.