On 10/30/09 4:43 PM, "van Sleeuwen, Berry" <[email protected]> wrote:
> I was told that duplicate MAC addresses would not be a problem in a > TCPIP connection. Wrong. If you are using a layer 2 VSWITCH, then MACs must be unique. > So the question would be if in IP connections, is it realy a problem to > have duplicate MAC addresses? If you had layer 3 VSWITCHes, no, because the code is switching on the IP address not the MAC. In a normal layer 2 switch, the code switches on the MAC address in the frame, so they have to be unique in the entire layer 2 collision domain because ARP is a broadcast protocol. I'd say you have accidentally duplicated a MAC address that is live somewhere outside the machine. That would give exactly those symptoms. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
