I'll disagree with you on both parts.

As already mentioned, subnet directed broadcasts can and do work well (I've 
seen some larger orgs implement it quite successfully) as does proxy wake-up. 
The reason it sent your network off into lala land was because when you turned 
it on, the network team wasn't involved. The behavior is well documented on 
TechNet and not involving them when it was turned on was the real source of the 
problem. There's nothing "funky" about MAC address spoofing and is a well-known 
practice. Don't blame a lack of research on the product.

Does that mean there's not alternate ways of accomplishing the task or room for 
improvement? Certainly not. But that doesn't mean what's out of the box can't 
work well with planning and understanding of how it works.

J

From: [email protected] [mailto:[email protected]] On 
Behalf Of Jason Lang
Sent: Thursday, September 4, 2014 5:31 PM
To: [email protected]
Subject: [mssms] RE: Who uses AMT and Out of Band?

Purely Magic Packets (WOL) is largely useless on a subnetted network, which 
most places large enough to use SCCM are by design.

Now, if you're talking about that wonky SCCM "Directed Wake Up Proxy Packet" 
thing SCCM Has, I'd strongly recommend against turning that on. Ever.

Does some funky MAC Address spoofing that sent our switches into "drop the 
switchport" mode every 5 minutes or so on every single port, generally wreaked 
havoc until we disabled it again.

More info/forum posts here: 
https://supportforums.cisco.com/discussion/11835361/mac-address-flapping-and-sccm-wake-proxy#3953829

Jason Lang

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Heaton, Joseph@Wildlife
Sent: Thursday, September 4, 2014 5:58 PM
To: '[email protected]'
Subject: [mssms] RE: Who uses AMT and Out of Band?

What about using magic packets only?

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Marcum, John
Sent: Thursday, September 04, 2014 1:48 PM
To: '[email protected]'
Subject: [mssms] RE: Who uses AMT and Out of Band?

With SCCM? It doesn't even work. I mean, it does but only with really old 
versions of the agent. CSS told me to turn it off and get the Intel tool.

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Kent, Mark
Sent: Thursday, September 04, 2014 1:38 PM
To: [email protected]<mailto:[email protected]>
Subject: [mssms] RE: Who uses AMT and Out of Band?

We're still debating it as well.  Don't know if it's worth the hassle to setup 
and maintain.  Lots of confusing docs, various versions of the agent (we have 
3.x up through 9), etc.

Mark Kent (MCP)
Sr. Desktop Systems Engineer
Computing & Technology Services - SUNY Buffalo State

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of John Aubrey
Sent: Thursday, September 4, 2014 2:25 PM
To: '[email protected]'
Subject: [mssms] Who uses AMT and Out of Band?

We are looking into enabling Out of Band with AMT support in our environment.  
Does anyone use it?  Is it helpful? For the most part we'll be using it to 
remotely wake up machines and troubleshooting.  It looks like a big set up, but 
should make things easier for software deployments and the help desk.  Most of 
our PC's do have AMT enabled, so that isn't going to be an issue.

--John


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