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To view or change the virtual machine Ethernet configuration, select Ethernet in the left-hand pane of the Settings window. This will open the Ethernet configuration window. A sample Charon-SSP/4U window is shown below:

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Charon-SSP Ethernet configuration screen functions:

• To create a virtual network, click the Create Virtual Network button. For further details on creating, changing and removing a virtual network, see the section Host System Network Configuration. Only internal bridges (without binding interface) can should be used with cloud-specific Charon-SSP AWSinstances.

• To modify an existing virtual Ethernet adapter, select it from the list of configured devices and click on Edit (the edit button becomes visible once an interface has been selected).

• To remove an existing virtual Ethernet adapter, select the adapter from the list of configured devices and click the Remove button (the remove button becomes visible once an interface has been selected).

• To add a new virtual Ethernet adapter, click the Add button.

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Select the host attached Ethernet device to be connected to the virtual device. This field is a drop-down list of all the network adapters available on the host system. Important points:

• On a Charon-SSP AWS cloud-based host, you can either use an internal bridge to create TAP interfaces that will then be used in the emulator configuration, or you can use a dedicated NIC. If a dedicated NIC is used,

  • the MAC address of the emulated interface must be set to the MAC address of the NIC connected to the Charon host, and

  • the IP address of the guest system must be set to the private IP address allocated to the NIC by AWSthe cloud provider.

• It is permitted to assign the localhost interface (lo) to an emulated device (if only a dummy device is required in the guest).

• Some options are configurable, but will not work with Charon-SSP AWScloud-specific products. They are listed here only for completeness:

  • Using the same physical device for multiple emulated Ethernet devices of the same instance.

  • Sharing a NIC between emulator and host (i.e., both have their own IP address on the same interface).

  • Assigning the same physical interface to more than one Charon-SSP instance.

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 This option can be useful in cases where licensing is tied to a network adapter MAC address. It is required if a dedicated NIC is used on the Charon-SSP AWS cloud-based instance.