Detailed Description

When a wireless connection is established on a host platform, it is based on a wireless profile that sets up names, passwords and other security elements used to authenticate the platform to the wireless Access Point. The user or the IT organization defines one or more profiles using a tool such as Intel® PROSet/Wireless Software. In Release 2.5/6, Intel AMT must have a corresponding wireless profile to receive out-of-band traffic over the same wireless link. The network interface API allows defining one or more wireless profiles using the same parameters as the Intel® PROSet/Wireless Software. See Wireless Profile parameters. On power-up of the host, Intel AMT communicates with the wireless LAN driver on the host. When the driver and Intel AMT find matching profiles, the driver will route traffic addressed to the Intel AMT device for manageability processing. With certain limitations, Intel AMT Release 4.0/1 can send and receive out-of-band traffic without an Intel AMT configured wireless profile, as long as the host driver is active and the platform is inside the enterprise.

In Release 4.2, and on Release 6.0 wireless platforms, the wireless LAN interface (WLAN) is enabled by default both before and after configuration. That means that it is possible to configure Intel AMT over the WLAN, as long as the host WLAN driver has an active connection. Intel AMT will synchronize to the active host profile. It is assumed that a configuration server will configure a wireless profile that Intel AMT will use in power states other than S0.

When there is a problem with the wireless driver and the host is still powered up (in an S0 power state only), Intel AMT can continue to receive out-of-band manageability traffic directly from the wireless network interface.

In Release 2.5/6, Intel AMT does not receive wireless traffic when the host is asleep or off. The Intel AMT device can still receive manageability traffic if there is a wired connection. Release 4.0 and later releases support WLAN manageability in Sx.

For Intel AMT to work with a wireless LAN, it must share IP addresses with the host. This requires the presence of a DHCP server to allocate IP addresses and Intel AMT must be configured to use DHCP. Configuring Intel AMT to use a static IP address disables its connectivity to the wireless LAN.

 Note:

Applications performing wireless interface configuration should verify that the managed platform has a wireless interface. See the Discovery use case Determine if the Platform has a Wireless Interface.

 

See Also:

   Wireless Profile Parameters

   User Profiles and Admin Profiles

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