mac address

I need to find out what this mac address and ip belongs to. I have Linksys EA6900 router and it list network device with this information
50:85:69:75:E9:82  mac address  ip address

I looked at all the devices connected and none of them has this info I need to know where did this come from, is there a free tool that I can use?

Thank you
Basem KhawajaClinical PharmacistAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
The IP address is given out by your router.  The Mac address can be looked up on any number of web sites - it's LIKELY NOT GOING TO TELL YOU EXACTLY what it is.  The Mac is at best going to tell you the manufacturer of the network adapter - I could buy an Intel network adapter and install it in a Dell or HP computer and you'd never know without a network inventory tool.  (I looked up the address for you at and it appears to belong to Samsung - it could be a phone using your wifi or your samsung laptop).  I would suggest making a reservation in DHCP (you do run DHCP off Windows, right?) and then set the gateway for that reservation to something other than the correct address - that should disable it for use on the internet until whoever is connecting complains and you can confirm it's their device.

You can also install SpiceWorks on your network and let it audit things - it may be able to identify the device.
Don JohnstonInstructorCommented:
It's a Samsung device.

Beyond that, you would need to identify which port it's connected to using either the MAC address table or the ARP cache.
JohnBusiness Consultant (Owner)Commented:
It appears to me that you got this information from your computer and that the IP address (.116) belongs to your computer as does the MAC address (address of the Network Card you are using).

You need to log into your EA6900 router and it will tell you the gateway (the log in address) of the router (likely and somewhere in the setup, it should tell you the MAC address.

The MAC address of the router is likely on a sticker on the bottom of the router as well.
Basem KhawajaClinical PharmacistAuthor Commented:
thanks guys
JohnBusiness Consultant (Owner)Commented:
@basemkhawaja64  - You are very welcome and I was happy to help.
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