Brocade Communications Systems Mobility 7131 Series Service Manual download pdf (Page 144)

132 Brocade Mobility 7131 Access Point Product Reference Guide

53-1002517-01

CAUTION

Both the Mobility 7131N Access Point’s WAN port and express card slot are disabled if the power

mode is set to 3af, or if the Mobility 7131N Access Point defines its power budget as 3af. Refer to

the Power Settings screen (go to Configuring Power Settings on page 4-70) or check the WWAN

State (within the WAN screen) to determine whether the AP has sufficient power for the express

card operation.

6. Click Apply to save any changes to the WAN screen. Navigating away from the screen without

clicking the Apply button results in all changes to the screen being lost.

7. Cli ck Undo Changes (if necessary) to undo any changes made. Undo Changes reverts the

settings displayed on the WAN screen to the last saved configuration.

8. Click Logout to securely exit the Access Point applet. A prompt displays confirming the logout

before the applet is closed.

Configuring Network Address Translation (NAT) Settings

Network Address Translation (NAT) converts an IP address in one network to a different IP address

or set of IP addresses in another network. The Mobility 7131 Access Point router maps its local

(inside) network addresses to WAN (outside) IP addresses, and translates the WAN IP addresses on

incoming packets to local IP addresses. NAT is useful because it allows the authentication of

incoming and outgoing requests, and minimizes the number of WAN IP addresses needed when a

range of local IP addresses is mapped to each WAN IP address. NAT can be applied in one of two

ways:

• One-to-one mapping with a private side IP address

The private side IP address can belong to any of the private side subnets.

• One-to-many mapping with a configurable range of private side IP addresses

Ranges can be specified from each of the private side subnets.

To configure IP address mappings for the Mobility 7131 Access Point:

WWAN CRM Remote

Gateway 2

Optionally define a numerical IP address for a second WWAN remote gateway. If the access

point detects the loss of the wired WAN connection, it establishes the WWAN connection

and uses a remote gateway to route traffic. Traffic that used go to the wired WAN is

redirected to the WWAN over this second choice remote gateway, if the first gateway is

unavailable.

WWAN CRM Remote

Gateway 3

Optionally define a numerical IP address for a third WWAN remote gateway. If the access

point detects the loss of the wired WAN connection, it establishes the WWAN connection

and uses a remote gateway to route traffic. Traffic that used go to the wired WAN is

redirected to the WWAN over this third choice remote gateway, if the first two gateways

addresses prove unavailable.

Tunnel Required Select this option to use a remote tunnel with the access point’s WWAN failover operations

if the wired WAN connection is lost.

Tunnel Remote IP If using a tunnel, provide a numerical IP address for the remote tunnel used by the access

point’s WWAN.

Tunnel Phrase If using a tunnel, provide a pass phrase used to secure the tunnel’s connection to the

access point’s WWAN.

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Brocade Communications Systems Mobility 7131 Series Service Manual Page 144

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