Unclear on active response MAC address

[Research <research () nativemethods com>]

Hello,

Under the active response section in the Snort 2.9.7.0 manual, I see the syntax for configuring sniping in passive mode 
is:

        config response: [device <dev>] [dst_mac <MAC address>] attempts <att>

I don’t understand the purpose of being able to configure the destination MAC address.  Does that change the MAC 
address in the frames that are sent as sniping runs and if so, why would I be concerned with that being something 
configurable ?

Thanks
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