Hi, I'm trying to run the xen with the NAT mode.
 
I referenced the 'http://wiki.kartbuilding.net/index.php/Xen_Networking#Routed_Networking_with_NAT_2'.
 
As shown the above link, I commented the 
 
(network-script network-bridge)
(vif-script vif-bridge),
 
and uncomment the 
 
(network-script network-nat)
(vif-script vif-nat)
 
in '/etc/xen/xend-config.sxp.
 
After rebooting the dom0, I configured the dom1.cfg to add the vif.
 
I inserted the 'vif = [ "ip=30.0.0.1" ] at the end of the dom1.cfg.
 
When I run the dom1 using the virt-manager, the vncdisplay dosen't show the POST screen.
 
It just shows the text 'Console is not yet active for guest' and the CPU usage is 0%.
 
However the Memory usage shows 512MB which is configured when domain creating.
 
After deleting the 'vif = [ "ip=30.0.0.1" ]' in the dom1.cfg and reruns the dom1, it works very well.
 
DId I wrong configure the dom1.cfg??
 
Thanks for reading.
 
PS) dom0: CentOS 5.5 + xen 3.1
       dom1: Ubuntu 8.04. LTS with HVM