Extreme Networks Summit WM3000 Series Reference Manual page 364

Controller Security
3 Refer to the following information as displayed within the Interface tab:
Interface
Type
4 To Edit an existing interface, select it from the list of available interfaces and click the Edit button.
An Edit Interface screen displays allowing the user to modify the VLAN and interface type (inside
or outside).
5 If an interface is obsolete or of no use to the NAT translation process, select it and click the Delete
button to remove it from the list of interfaces available
6 If modifying an existing interface is not a valid option, consider configuring a new interface. To
define a new NAT interface:
a Click the Add button from within the Interfaces tab.
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Displays the VLAN used as the inside or outside NAT type. All defined
VLANs are available from the drop-down menu for use as the interface.
Displays the NAT type as either:
Inside
• - The set of controller-managed networks subject to translation.
These are the internal addresses you are trying to prevent from being
exposed to the outside world.
Outside
• - All other addresses. Usually these are valid addresses
located on the Internet. Outside addresses pose no risk if exposed over
a publicly accessible network.
Summit WM3000 Series Controller System Reference Guide