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Removing an Ethernet Adapter from a Virtual Machine

When you install VMware GSX Server, two network adapters are added to the configuration of your host operating system — one that allows the host to connect to the host-only network and one that allows the host to connect to the NAT network.

If you are not using these adapters, you may wish to remove them. The presence of these adapters has a slight performance cost, because broadcast packets must go to the extra adapters. And in some cases, these adapters interact with the host computer’s networking configuration in undesirable ways.

1. Become root and run the VMware GSX Server configuration script:

   su
   vmware-config.pl
   

2. Watch for the following question:

   Do you want networking for your Virtual Machines? (yes/no/help) [help]
   

   Answer Yes if you still want to use any networking in your virtual machines, then continue to the next question.

   Otherwise, answer No to remove all networking.

3. If you answer Yes, the script prompts you to select the wizard or editor to edit your network configuration. Select editor. This is the only way to delete specific virtual network adapters without removing all of them.

   Would you prefer to modify your existing networking
   configuration using the wizard or the editor? (wizard/
   editor/help) [wizard] editor
   

4. You see a list of virtual network adapters that have been configured. Select the adapter you wish to remove.

   The following virtual networks have been defined:
   
   . vmnet0 is bridged to eth0
   . vmnet1 is a host-only network on subnet 172.16.155.0
   . vmnet8 is a NAT network on a private subnet 172.16.107.0
   
   Which virtual network do you wish to configure? (0-99) 1
   

5. You may be prompted to keep this virtual network. If you are sure you want to remove it, answer Yes.

   The network vmnet1 has been reserved for a host-only network.
   You may change it, but it is highly recommended that you use
   it as a host-only network. Are you sure you want to modify it?
   (yes/no) [no] yes
   

6. When prompted about the type of virtual network, select None and the virtual network is removed.

   What type of virtual network do you wish to set vmnet1?
   (bridged,hostonly,nat,none) [hostonly] none
   

Related topics:

• Changing network access for a virtual machine
• Adding an Ethernet adapter to a virtual machine

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