Configuring Network Address Translation (Nat) Settings - Extreme Networks Altitude 4700 Series Product Reference Manual

WWAN CRM
Remote Gateway 3
Tunnel Required
Tunnel Remote IP
Tunnel Phrase
CAUTION
Both the Altitude 4710's WAN port and express card slot are disabled if the power mode is set to 3af, or
if the Altitude 4710 defines its power budget as 3af. Refer to the Power Settings screen (go to
Power Settings" on page
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 Click 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 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.
Altitude 4700 Series Access Point Product Reference Guide
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.
Select this option to use a remote tunnel with the Access Point's
WWAN failover operations if the wired WAN connection is lost.
If using a tunnel, provide a numerical IP address for the remote
tunnel used by the Access Point's WWAN.
If using a tunnel, provide a passphrase used to secure the
tunnel's connection to the Access Point's WWAN.
81) or check the WWAN State (within the WAN screen) to determine whether the AP
"Configuring
141