Tuesday, 17 August 2010

Make VMware Virtual NICs part of an "identified network" to avoid firewall issues on running VMs

When you install VMware Workstation or Player on a Windows 7 machine you will notice that if you hover your mouse over the network icon in the system tray your network is mentioned in the popup: plus "unidentified network". This can cause you serious bother if you are running virtual machines and want to connect them to the internet as the virtual network cards (NIC) for the NAT or bridged networks are no longer within the parameters set by the operating system's firewall.

To get round this:

Click Start, click Run, type regedit, and then click OK.

Click the follwoing subkey:HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}

Browse through the 00xx subkeys until you find the REG_SZ VMNet subkey with a value of either “\DosDevices\VMnet8” or “\DosDevices\VMnet1” (default values) (13 & 15?)

On the Edit menu, point to New, and then click DWORD Value.
Type *NdisDeviceType, and then press Enter.

On the Edit menu, click Modify.

Type 1, and then click OK.

Exit Registry Editor.

Disable & re-enable the VMWare NICs

DoneNote: In case simply disabling and re-enabling the virtual NICs doesn’t fix the problem immediately reboot your computer.


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