|We had been experiencing a very bad web connection, every evening for several weeks it kept disonnecting and the router would freeze after a couple of hours.|
I first thought it was coming from a lousy tree map of our local network ( sometimes people change the cables from where they were plugged in) so I check all the cables, repared the lousy ones, etc.
Secondly I phoned the ISP to check the line wasn't faulty (us being in the middle of nowhere with a low bandwdith -2M)
Thirdly, I filtered each MAC address (20 computers in our local LAN) to sse if one of them might be causing the freeze.....
And after all that, after seeing something absurd in the list of local LAN clients in the new Cisco router.... like a 10.x.x.x address instead of 192.168.1.x.... didn't have time to note the MAC address or IP of this "thing"
I now realise, after permitting all computers in our local LAN and blocking anything else : it works 24/7
Someone must have been using our connection from the outside.... our HARD LINE, this is.
We're in the middle of a load a corn fields and no one in their right mind would come with their lap top, in the middle of a field and hack a connection.... so....
A part from MAC filtering, is there any way of setting up a better security for our network against this type of attack.... and HOW DO I FIND OUT who the hell was doing it if possible.....