Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 507)

Brocade Mobility RFS Controller System Reference Guide 495
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Network Address Translation (NAT) is a technique to modify network address information within IP
packet headers in transit across a traffic routing device. This enables mapping one IP address to
another to protect 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 is a process of modifying network address information in IP packet headers while in transit
across a traffic routing device for the purpose of remapping one IP address to another. In most
deployments NAT is used in conjunction with IP masquerading which hides RFC1918 private IP
addresses behind a single public IP address.
NAT can provide an 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 define a NAT configuration that can be applied to a profile:
1. Select the Configuration tab from the Web UI
2. Select Profiles from the Configuration tab.
3. Select Manage Profiles from the Configuration > Profiles menu.
4. Select Security.
5. Select NAT.
FIGURE 73 Security NAT screen - NAT Pool tab
The NAT Pool displays by default. The NAT Pool screen lists those NAT policies created thus
far. Any of these policies can be selected and applied to a profile.
6. Select Add to create a new NAT policy that can be applied to a profile. Select Edit to modify the
attributes of a existing policy or select Delete to remove obsolete NAT policies from the list of
those available to a profile.