[MUD-Dev] DGN: Random questions about griefers

[Thomas Tomiczek]

Ian Hess wrote:

> I find myself wondering if its possible to collect MAC addresses
> of connecting network cards as well.  The mac could still be
> altered by an end user, but if this blocking method wasn't
> published, it could be harder for an end user to work around.

You can not, as you do not have access to it.

On the IP / Internet layer, a MAC address is like the port number of
the phone in the phone system: something the higher layers do
neither care of, nor know. So, the problem is actually getting this.

The only endpoint that has access to the MAC must basically be in
the same ethernet segment. Anything more remote / connected on a
higher level has no knowledge of this item.

Thomas
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