Novell LINUX ENTERPRISE SERVER 10 SP2 - VIRTUALIZATION WITH XEN Manual page 98

7.6.3 Configuring the Virtual Network Card
1 Run YaST.
2 In YaST, click Network Devices > Network Card.
3 Click Change, then select and delete each network card that is already configured.
4 Click Add, then change the ethx parameter to a network card number identified
92 Virtualization with Xen
You can also restart the virtual machine by using xm start vm_cfgfile,
but make sure to connect to it with a viewer.
The first time the virtual machine boots, you might see a message indicating that
new hardware was found. This message can be safely canceled.
1a Make sure you are logged in as root.
1b Open a terminal.
1c Enter YaST2.
above. Repeat the process to add all virtual network cards.