We seem to have a problem with rogue devices on our network. From DHCP (on Win2003), I can see names of devices that are clearly not ours. From the name, I suspect it's a wireless AP (WGR614 looks like a Netgear to me). I can't ping it now, but I want to A.) be certain it's gone, and B.) stop it from coming back.
My initial theory is to block the MAC address at the switch. I'd also like to find which port the MAC addy was connected to so I can find the location it was connected.
We have different flavors of HP ProCurve switches, with our primary switch a 4200. How would I go about doing this as a one-off task? I'm not a network admin really, so please be gentle.