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We all know that within a LAN, we can make use of magic packet to turn on any number of systems. But how to wake up a remote pc which is in some remote LAN?In my previous question on WOL, some one said that we cannot turn on the remote pc, because anybody's pc can be easily turned on. Thats true. But we can use a unique password to wake on the system. when i referred wikipedia i got this "

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. However any network eavesdropping will expose the cleartext password.Still, only a few NIC and router manufacturers support such security features".

From this it is clear that WOL implementation with password protection is possible. So why is it not possible to wake on remote pc with secure password?(i need to give an analogy here:assume that u send a msg using ur cell phone to ur friend who is in remote place. the conversation is secure. similarly is there any way to turn my system into a reception point, so that when i send a wake on message, the system gets turned on.?)

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您需要远程 LAN 中的某些东西来重新广播 WoL 魔术包。某些路由器具有此功能,或者您可以使用 LAN 中的始终在线 PC。大多数路由器会过滤发送给它们的广播 ( . .*.255),而不会将它们传递到任何子网,因此这完全取决于您的路由器。

于 2012-05-26T06:31:20.740 回答