Hi, I have a physical 2003 R2 server that I am attempting to virtualise onto a 2008 R2 Hyper-V host. The host has its own dedicated NIC (172.16.0.17), a 2nd NIC dedicated to another 2003 guest VM (running fine with 172.16.0.9 on an virtual switch connected to an "External" network) and a 3rd NIC dedicated to the new guest VM (which will be 172.16.0.8 on another virtual switch connected to an "External" network).
I have used ShadowProtect to back up the physical server (VSS snapshot process) then restore into the new guest VM. I have succesfully used this process several times before. When you bring up the guest for the first time (after switching off the old physical server) you do it in Safe Mode with Networking so you can unhide then uninstall the old physical NIC and therefore release the IP address (172.16.0.8). You can then reboot and set the IP address of the guest's new LAN connection (with the VM Bus Network Adaptor) to the old physical server's address.
As soon as I do this I get an IP address conflict. The Event Log gives the MAC address of the old physical server's NIC but it has been switched off by this point! I am positive there is no other device on the network with this address. If I change the guest VM's address to something else the message goes away. A ping of 172.16.0.8 produces no reply (no reply on other servers as well). There is no entry in the ARP table for 172.16.0.8. If I show hidden devices in Device Manager the old physical NIC is not there. Devcon only shows the VM Bus Network Adaptor and there are no additonal adaptors in the usual registry locations.
Curiously if I change the virtual switch to "Private Virtual Machine Network" mode then set the VM guest's IP to 172.16.0.8 there is no conflict message. This implies that the address is in use somewhere on the network but I am sure it isn't.
Any ideas? Thanks,
Guy Ellingham