Strange MAC addresses in your network (00:0D:3A:D7:F1:40 – 00:0D:3A:FF:FF:FF)

Today I noticed many strange MAC addresses in our LAN. The addresses looked very similar – only few bits were changing. Sometime this happens, when Ethernet cable is damaged or due to network card malfunction. Here are some sample MAC addresses I observed: 000d3a-fa6109 000d3a-fa6207 000d3a-fa6209 000d3a-fa6107 000d3a-fa6203 000d3a-fa6103 000d3a-fa6212 000d3a-fa6112 000d3a-fa610f 000d3a-fa620f It turns […]