WOL question

TeddyLM · Post by **TeddyLM** » Wed May 03, 2006 7:28 pm

Hi all

Is ist possible to wake up a host (on LAN) with TCP protocol instead of udp ? I wrote a tool to send a magic packet via broadcast and wonder if it's possible to send such a packet directly to a host (with static IP).

Trond · Post by **Trond** » Wed May 03, 2006 7:58 pm

Theoretically TCP requires a connection. But I don't know in practise.

Nik · Post by **Nik** » Wed May 03, 2006 9:16 pm

The magic packets are sent to MAC addresses not IP addresses since a turned off computer doesn't have a Mac Address, so I don't think it's possible.

ABBKlaus · Post by **ABBKlaus** » Wed May 03, 2006 10:20 pm

Trond is absolutely right see here :
http://msdn.microsoft.com/library/en-us ... cket_2.asp

SOCK_STREAM = Provides sequenced, reliable, two-way, connection-based byte streams with an OOB data transmission mechanism. Uses TCP for the Internet address family.
SOCK_DGRAM = Supports datagrams, which are connectionless, unreliable buffers of a fixed (typically small) maximum length. Uses UDP for the Internet address family.

TeddyLM · Post by **TeddyLM** » Wed May 03, 2006 10:34 pm

thanks