Extreme Networks Altitude 4000 Series, Справочное руководство, Страница: 108 / 521

Chapter 6: Device Configuration
Altitude
TM
4000 Series Access Point System Reference Guide
108
6 If adding a new NAT policy or editing the configuration of an existing policy, define the following
parameters:
7 Select the + Add Row button as needed to append additional rows to the IP Address Range table.
8 Select OK to save the changes made to the profile’s NAT Pool configuration. Select Reset to revert to
the last saved configuration.
9 Select the Static NAT tab.
The Source tab displays by default.
10 To map a source IP address from an internal network to a NAT IP address click the + Add Row
button. Enter the internal network IP address in Source IP field. Enter the NAT IP address in the
NAT IP field.
11 Use the Network drop-down menu to set the NAT type either Inside or Outside. Select Inside to
create a permanent, one-to-one mapping between an address on an internal network and a perimeter
or external network. To share a Web server on a perimeter interface with the Internet, use static
address translation to map the actual address to a registered IP address. Static address translation
Name If adding a new NAT policy, provide a name to help distinguish it from
others with similar configurations. The length cannot exceed 64 characters.
IP Address Range Define a range of IP addresses that are hidden from the public Internet.
NAT modifies network address information in the defined IP range while in
transit across a traffic routing device. NAT only provides IP address
translation and does not provide a firewall. A branch deployment with NAT
by itself will not block traffic from being potentially routed through a NAT
device. Consequently, NAT should be deployed with a stateful firewall.