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View Full Version : Rogue Mac Address


Atomsk
12-02-2010, 01:56 PM
I'm getting a rogue unregistered mac address through the same port as my PC, which is the entire reason why my internet keeps going down. I've been on the phone with the tech support for the school on and off the past two days, and we've tried everything we could think of to FIND where it's coming from, with no luck.

One of the administrators is coming next Monday to check if it's a problem with the port or my PC, and I was wondering if anyone had any ideas as to how I could find this address.

eddo
12-02-2010, 02:29 PM
Screenshots

quarks
12-02-2010, 08:07 PM
just a suggestion...

nm

Freaky_Angelus
12-03-2010, 01:07 AM
Could you like be more elaborate?

Getting a "rogue mac adress" is kinda very weird to hear as mac should be the hardware's id and not something "you get" through internet.. a rogue ip adress being assigned however...

Furthermore, you could force the mac adress you are supposed to broadcast to your ISP (for identification) into your NIC by merely setting it into your devices advanced settings.

So, what you mean bro?

DocBlock
12-03-2010, 01:45 AM
Yes, more information is clearly warranted here, and I imagine there are a number of us who might be able to assist.

It is possible that his school is doing MAC locking, where they only allow a single MAC per port, and that he has some sort of virus or whatever that's attempting to set up it's own MAC in order to send spam, or whatever. In that case, he'd have two MAC's on a port, which wouldn't be noticeable in a home router but is in a more tightly controlled system.

That's just one of a number of explanations, assuming this is even moderately correct diagnostics on the part of the college administrators (which I'd highly suspect is not reliable).

Freaky_Angelus
12-03-2010, 05:21 PM
I once had such a virus... solution was enforcing the mac adress, after that + a reboot whatever was fracking my mac disappeared. (nr #5627378485 out of the solutions with this information :P)