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6804
July 30th, 2015 02:00
[Inquiry] Support WOL function
I would like to inquiry if there are supporting the WOL (Wake On Lan) function of your desktop or notebook.
I inform that there is a restrict WOL function with Windows 8 (or later).
For example, it is possible to use the WOL function, when shut-down the computer on sleep mode in case of Window 8 or Window 8.1.
And I inform that people might lose the WOL functionality, when turn off the computer.
Especially, the WOL function will be excluded from the specifications on Window 10.
How is your plans to support the WOL function?
Please inform me the list of support WOL function of your current sales or products to be released.
Or, it will be highly appreciated if you let us know the proportion of products, which support the WOL function, among your products.
Thank you for your cooperation.
Look forward to receiving your reply soon.
speedstep
11 Legend
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47K Posts
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July 31st, 2015 10:00
WOL is considered hostile and therefore blocked at the border firewalls. The use of Wake-on-LAN technology on enterprise networks can sometimes conflict with network access control solutions such as 802.1x or MAC-based authentication, which may prevent magic packet delivery if a machine's WoL hardware has not been designed to maintain a live authentication session while in a sleep state.
Configuration of these two features in tandem often requires tuning of timing parameters and thorough testing.Certain NICs support a security feature called "SecureOn". It allows users to store within the NIC a hexadecimal password of 6 bytes. Clients have to append this password to the magic packet. The NIC wakes the system only if the MAC address and password are correct. This security measure significantly decreases the risk of successful Brute force attacks by increasing the search space by 48 bits (6 bytes), up to 296 combinations if the MAC address is entirely unknown. Firewalls are set to block magic packets so that any network eavesdropping will not expose the cleartext password.
WOL MUST BE enabled in BIOS to "wake" a machine from sleep.
WOL is hardware and software built into the system or not. WOL is old as Dirt aka it was around with MSDOS. In April 1997 Intel/IBM/3COM introduced the Wake-on-LAN technology.The ability to wake from a hybrid shutdown state (S4) or a fully powered off state (S5) is unsupported in Windows 8 and above and Windows Server 2012 and above.This is because of a change in the OS behavior which causes network adapters to be explicitly not armed for WOL when shutdown to these states occurs. WOL from a sleep state (S3) or non-hybrid hibernation state (S4) is supported.
Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed. Wake-on-LAN is built upon broadcast technology and can generally be used within the current network subnet. When that Subnet is an RFC1918 number it cannot be accessed without NAT. In order for Wake-on-LAN to work, parts of the network interface need to stay on. This is why it must be enabled
at the bios level when available.