Re: Curious Question about an Extra MAC Address

From	john doe <johndoe65534@mail.com>
Newsgroups	linux.debian.user
Subject	Re: Curious Question about an Extra MAC Address
Date	2021-10-27 08:10 +0200
Message-ID	<DcKil-5MH-1@gated-at.bofh.it> (permalink)
References	<DcCuu-KQ-3@gated-at.bofh.it> <DcDqx-1jz-1@gated-at.bofh.it>
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On 10/27/2021 12:26 AM, Dan Ritter wrote:
> Martin McCormick wrote:
>>     sudo nmap -sn 192.168.1.0/24 followed by
>>    sudo arp -a and I found nothing extraordinary so I also got on
>> our Netgear router and told it to cough up a list of attached
>> devices, showing the same list of stuff that the first two sweeps
>> found.  Additionally, there was 1 mac address with no other
>> information such as an IP address or system name, just that MAC
>> on a row all by itself.
>>
>> 	I had been looking for our DVD player which has the
>> ability to view streamed movies and I think this might be it.
>
> https://ouilookup.com/
>
> will take that MAC and let you know which manufacturer has that
> block assigned.
>
>> 	My question is, did the link she went to on the computer
>> or maybe her iPhone use javascript to get our WiFi password and
>> if so, how did the player get the authorization to use our WiFi?
>
> 1. It found an open wifi network
> 2. It's plugged into your ethernet
> 3. Your wife gave it the wifi password
>
>> 	I am just curious about how did this work and could a
>> person cause it to log on to our WiFi network and receive a video
>> stored on a system here?
>
> Quite possibly. The systems for this is called several names, but
> the most likely are UPNP, DLNA, ChromeCast or AirPlay.
>
>> 	What I am actually thinking of is more like a DVR where a
>> computer can record a TV show like the old-school VCR's and then
>> one could play it back through the DVD player on the network.
>
> Suitable Debian packages include:
>
> mythtv
> vdr
> kodi
> and for music, many others.
>
>
>
>> 	This player can also update it's firmware when necessary
>> and we've never been prompted from it for a WiFi password.  It
>> just seems to be able to get through when it needs to.
>
> That's suggestive of already knowing your wifi password or being
> on a wired network.
>

If there is no ethernet cable attached to the player, you could try to
reset it to factory default and try to reconnected to your network.

--
John Doe

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Thread

Curious Question about an Extra MAC Address "Martin McCormick" <martin.m@suddenlink.net> - 2021-10-26 23:50 +0200
  Re: Curious Question about an Extra MAC Address Dan Ritter <dsr@randomstring.org> - 2021-10-27 00:50 +0200
    Re: Curious Question about an Extra MAC Address john doe <johndoe65534@mail.com> - 2021-10-27 08:10 +0200

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