Hot add a NIC to a VM with a Linux guest OS

To configure the network card from the command line interface:

• The acpiphp module must be loaded for Linux to detect hot-added devices.
  
  To load the acpiphp module, run this command:
  
  modprobe acpiphp
  
  
• Run the kudzu command to ensure that the new hardware is detected and configured.
• Run this command to ensure that the network card is enabled:

ifup eth2 Note: eth2 is the new network card that has been added.

• To configure the network card, edit the ifcfg-eth2 file using a text editor.
  
  To edit the file using vi editor, run this command:

# vi /etc/sysconfig/network-scripts/ifcfg-eth2