Hi Arion,
Thanks for your support. I still could not find NSNB query/refresh packets destinated to device that starts with vmware_XX on my Mac.Which Fusion version are you using? Judging from the packet, it seems your Mad owns ip address 172.20.204.12, and 172.20.204.x should be allocated to your NAT VM? Does your windows 7 network work properly? Would you mind describe your network setup on your Mac and your windows 7 VM? Thanks you very much.