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NAT option is disabled for Ethernet device on VM

Posted on 2007-12-05
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Last Modified: 2009-06-16
My VM machines have the NAT option disabled for the Ethernet card, and when I try create a new Ethernet device, it's also had the NAT option disabled.

What can cause the NAT option to be disabled, and how can I fix it so it's enabled?
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Question by:Axter
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Expert Comment

by:rindi
ID: 20418099
Shutdown the VM, select "Edit the VM", select the NIC, and change the options you have there to the ones you want.
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by:Axter
ID: 20418803
>>Shutdown the VM, select "Edit the VM", select the NIC, and change the options you have there to the ones you want.

I did try making the changes with the VM shut down.
But the NAT option is still disabled.
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Expert Comment

by:rindi
ID: 20419520
What do you see when you edit the properties of the VM?
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by:Axter
ID: 20419586
I see the NAT option disabled.
I can select any of the other three options, but I can't select the NAT option.
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Expert Comment

by:rindi
ID: 20419733
In the vmware menu bar select "Host", "Virtual Network Settings", and then in the NAT tab make sure it isn't disabled or stopped.
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by:Axter
ID: 20419917
>>In the vmware menu bar select "Host", "Virtual Network Settings", and then in the NAT tab make sure it isn't disabled or stopped.

It's enabled and started.
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Expert Comment

by:rindi
ID: 20420249
Then try changing it's configuration in the virtual network settings, like using another virtual nic.
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Author Comment

by:Axter
ID: 20420363
>>Then try changing it's configuration in the virtual network settings, like using another virtual nic.

I'm trying to determine why it's disabled, and I rather have it working with default virtual nic.
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Expert Comment

by:rindi
ID: 20421032
On my system it's using "VMnet8". That was the default it got during installation
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by:Axter
ID: 20421280
>>On my system it's using "VMnet8". That was the default it got during installation
That's also what I have.
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rindi earned 500 total points
ID: 20422104
Did you update from an older vmware version? I saw something on the vmware site where it said that network settings aren't kept when updating a windows vmware host.

Check the following documention, it may have some more info on how to setup NAT.

http://pubs.vmware.com/server1/wwhelp/wwhimpl/js/html/wwhelp.htm

Also check out vmware's communities:

http://communities.vmware.com/community/vmtn/server/server
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by:Axter
ID: 20425398
I believe the issue was related to upgrading from the older vmware.
I uninstalled, and the reinstalled the VM, and it fixed the problem.
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Expert Comment

by:rindi
ID: 20425877
Your welcome
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