[Freedombox-discuss] Without software collusion

[Ben Mendis]

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What Tim is saying is that while the vPro control packets seem
"out-of-band" to the receiving computer (becaues they bypass the OS/CPU
of the receiver) they are not "out-of-band" to the intermediate
computers and devices on the network. Any router or other computer on
the network would see them and process them like any other network
traffic. The raw Ethernet frame can be sniffed and analyzed with
Wireshark or similar tools. The frame itself still has to follow all the
rules of how packets are processed at layers 1 through 3 of the OSI
model when they traverse switches and routers on the network.

On Thu, 28 Jun 2012, Tim Schmidt wrote:

> On Thu, Jun 28, 2012 at 4:13 PM, Rick Hodgin <foxmuldrster at yahoo.com> wrote:
>> However, it is out-of-band because the sender and receiver are operating on their own.
>
> No, they're not.  There are ethernet switches, wireless access points,
> or other networking equipment involved - each fully capable computers
> in their own right.
>
> 'Out of band' is entirely inappropriate language for what's happening here.
>
> They're just two ethernet devices, speaking ethernet frames to each
> other.  Like normal.
>
> The fact that the CPU of one of the machines isn't aware of the
> network communications means nothing.  It's still going on, still
> observable by any other ethernet device on the local network.
>
> --tim
>
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