I'm testing openwrt current with some rb150 and it works pretty well but yesterday I've found a strange problem ...as I can see all the boards I've booted with openwrt have the same mac addresses.

eth0: 00:41:44:4D:51:20
eth1: 00:41:44:4D:51:21
eth2: 00:41:44:4D:51:22
eth3: 00:41:44:4D:51:23
eth4: 00:41:44:4D:51:24

instead of

eth0: 00:0C:42:12:3D:72
eth1: 00:0C:42:12:3D:73
eth2: 00:0C:42:12:3D:74
eth3: 00:0C:42:12:3D:75
eth4: 00:0C:42:12:3D:76

any thought on how to fix it?

Thank you
Christian