WESM zl Management and Configuration Guide WT.01.28 and greater

8-18
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 destination
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.