IP address
(mandatory)
Enter the IP address assigned to the virtual interface created.
Network mask
(mandatory)
The default value suggested is 255.255.255.252. Since virtual GRE interfaces are
meant for setting up point-to-point tunnels, a network that allows assigning two
addresses is sufficient in theory. This value may however be customized.
Tunnel source
(mandatory)
Select the outgoing interface of traffic using the tunnel. In general, this would be the
firewall’s “out” interface or a bridge.
Tunnel destination
(mandatory)
Select the object representing the tunnel’s remote endpoint. This is a host object that
presents the public IP address of the remote firewall.
Comments(optional) Any text.
Creating or modifying a loopback interface
Loopback interfaces may be used, for example, in dynamic routing configurations.
To create or modify a loopback interface, click on the “Loopback” tab.
Button bar
Search Search that covers interfaces.
Add Adds an “empty” interface. An added interface (sending of a command) is effective
only if its fields Name and IP address have been entered.
Delete Deletes one or several selected interfaces. Use the keys Ctrl/Shift + Delete to delete
several interfaces.
Check usage
Represented by the icon , this button indicates whether the selected interface is
being used elsewhere in the configuration.
Click on Add in the toolbar. An additional row will be inserted into the table of loopback interfaces.
Presentation of the table
The table sets out four fields of information:
State Status of the interfaces:
Enabled: Double-click to enable the created interface.
Disabled: The interface is not in operation. The line will be grayed out in order to
reflect this.
Name(mandatory) Give the loopback interface a name.
IP address
(mandatory)
Enter the IP address assigned to the loopback interface created.
Comments(optional) Any text.
Page 360/448 sns-en-user_configuration_manual-v3 - Copyright © Stormshield 2016
SNS - USER CONFIGURATION MANUAL V.3
VIRTUAL INTERFACES
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