URGENT!!! My PC is sleeping...

[Seth DK]

I have succesfully found out how to use WOL (Wake On Lan) to turn on a computer with Visual Basic.

But this however only works with LAN it seems.

I have tried changing the UDP broadcast subnet from "255.255.255.255" (LAN) to something according to the IP address of the PC I wich to wake up (was told this was possible at www.planetsourcecode.com but could not get it to work)

PLEASE ADVICE!!!!!!!!!!!

[JafferAB]

broadcast subnet is 255.255.255.0 (or 1)

[Seth DK]

If I just enter 255.255.255.0 then I can wake up any PC in the world connected to the net just I have the MAC address??

[JungleMan]

Dont' you dare try mine

Well, give it a shot..

[JafferAB]

Originally posted by Seth DK
If I just enter 255.255.255.0 then I can wake up any PC in the world connected to the net just I have the MAC address??

nono, pfef, only on your network!

[Seth DK]

Say the computer has IP 1.2.3.4 and is connected to the ISP 24/7 with an always-on ADSL modem.

How should I wake the PC??

Specifying UDP remotehost = "1.2.3.255" or "1.2.3.0" or "1.2.3.1" does not work. Or even "1.2.3.4" does not work...

Please help me on this matter...

Is it limited to LAN?
If yes: why?!? Usually you can send UDP messages to other subnets as well!!

If no: HOW DO I SOLVE THIS PROBLEM????

Can anyone supply me with info/source codes/specific links please???

BTW TennisMan - I don't have your MAC number so don't worry!!

[rammicNCSU]

I don't know if this is the answer you're looking for, but most ISP's routers implement a pruning function to kill broadcast messages.

[Seth DK]

it's been a long time since I posted this thread. And since then I have found a solution.
An ActiveX component from www.ninstall.com that of course can be used both for ASP and VB and so on...

[Thor_Daddy]

You had the right idea....wrong information. The broadcast address is dependant on the way your ISP assignes addresses.

For example:

My DSL provider has assigned me the following addresses (hypothetically)

64.217.108.0/29 - what this means is that they are applying a 29-bit subnet mask to the class A network address....thus allowing them to break up the class A space into millions of networks.

Therefore...my network is 64.217.108.0....with usable addresses of 64.217.108.1 thru 64.217.108.6....with a broadcast address of 64.217.108.7

Hope this helps....must have a good working knowledge of networking to fully understand subnetting.