Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) User Manual

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Brocade Mobility RFS Controller System Reference Guide

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Network Address Translation (NAT) is a technique to modify network address information within IP
packet headers in transit. This enables mapping one IP address to another to protect wireless
controller managed network address credentials. With typical deployments, NAT is used as an IP
masquerading technique to hide private IP addresses behind a single, public facing, IP address.

NAT can provide a profile outbound Internet access to wired and wireless hosts connected to either
an Access Point or a wireless controller. Many-to-one NAT is the most common NAT technique for
outbound Internet access. Many-to-one NAT allows an Access Point or wireless controller to
translate one or more internal private IP addresses to a single, public facing, IP address assigned to
a 10/100/1000 Ethernet port or 3G card.

To assess the controller or service platform’s NAT configuration and statistics.

Select the Statistics menu from the Web UI.

Select an Access Point node from the left navigation pane.

Expand the Firewall menu from the left-hand side of the UI.

Select NAT Translations.

FIGURE 80

Wireless Controller - Firewall NAT Translation screen

5. The NAT Translations screen displays the following:

Protocol

Displays the translation protocol as either TCP, UDP or ICMP.

Forward Source IP

Displays the internal network IP address for forward facing NAT translations.

Forward Source Port

Displays the internal network (virtual) port for forward facing NAT translations.

Forward Dest IP

Displays the external network destination IP address for forward facing NAT translations.

Forward Dest Port

Displays the external network destination port for forward facing NAT translations.

Reverse Source IP

Displays the internal network IP address for reverse facing NAT translations.

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