Unknown device connected to my network??

StevieP · 6 Oct 2017 at 21:15

I was just browsing within my router UI when I noticed that there is apparently a wired device on my network that I don't think I know anything about!

The router is set to automatically block any devices without my authorisation so I'm not too concerned about it using the network but the additional weird thing is that the IP address it says it's attached to is in a different format to the rest of my wired and wireless devices!?!?

My IP range is 192.168.0.xx but my router is reporting that the IP address for this particular device is 192.168.1.120 - I've never been too clued up on network addresses so not sure if this is even possible to be honest!?!?

The only changes to my network recently is that I'm in the process of setting up an unRAID server and as part of that I've got a couple or dockers running (Plex, Transmission etc) - could this be something to do with it???

Thanks for any help with this..... (wouldn't even know how to Google the problem to be honest!)

MissChief · 6 Oct 2017 at 21:25

Is there a MAC address listed? If so, stick it into this: https://macvendors.com/ and it'll tell you the manufacturer so you can narrow it down.

StevieP · 6 Oct 2017 at 21:33

Hmmm, the MAC pops up as "Dell Inc" - now the tower I'm using to run unRAID is a Dell T410 but that system is already set up on the network (and has a reserved IP through my router) - still doesn't explain why the 3rd number in the string is a "1" rather than a "0" though??

I can't think of anything else Dell other than a Dell laptop I've got but again that's on the network already??

MissChief · 6 Oct 2017 at 21:35

Running a VPN or virtual machine on any of them?

StevieP · 6 Oct 2017 at 21:37

I've got a VPN and have been playing around with it on the Transmission client on the server - could this be what it is?? (I thought only hardware was issued an IP address on a network??)

Caged · 6 Oct 2017 at 23:34

Does your Dell server have an iDRAC card that shares the same physical interface?

ChrisD. · 7 Oct 2017 at 08:02

Caged said:
Does your Dell server have an iDRAC card that shares the same physical interface?

This. The T4xx series do this.

StevieP · 7 Oct 2017 at 13:42

Thanks guys!

Ricimer · 7 Oct 2017 at 14:43

192.168.1.120 is also the default idrac/bmc ip, you can set it to static/dhcp or turn it off.

If it is the full idrac enterprise rather than express/bmc then it can be very useful.

StevieP · 8 Oct 2017 at 08:32

What is it exactly and in case it's not useful right now, how do I turn it off - is it a BIOS setting??