Hi,All:
   Using KVM + libvirt + virt-manager, I meet a strange problem , some cloned vm  cannot get correct ip address via bridge network, but some vm can.
My host ip is 192.168.1.8 , a bridge interface br0 , an ethernet interface eth0
When the vm(win7) started ,I got the information like " ip 169.254.XXX.XXX netmask 255.255.0.0" by ipconfig
Here is the host network settings:
[root@kvm-8 ~]# ifconfig 
br0       Link encap:Ethernet  HWaddr BC:AE:C5:21:C8:FB  
          inet addr:192.168.1.8  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::beae:c5ff:fe21:c8fb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:59381 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52495 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:7078092 (6.7 MiB)  TX bytes:50729969 (48.3 MiB)
 
eth0      Link encap:Ethernet  HWaddr BC:AE:C5:21:C8:FB  
          inet6 addr: fe80::beae:c5ff:fe21:c8fb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:60238 errors:0 dropped:0 overruns:0 frame:0
          TX packets:76409 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:8037333 (7.6 MiB)  TX bytes:52546222 (50.1 MiB)
          Memory:fbee0000-fbf00000 
 
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:11312 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11312 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:36054480 (34.3 MiB)  TX bytes:36054480 (34.3 MiB)
 
virbr0    Link encap:Ethernet  HWaddr D2:38:52:7D:0D:5D  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
 
vnet0     Link encap:Ethernet  HWaddr FE:54:00:A1:A1:90  
          inet6 addr: fe80::fc54:ff:fea1:a190/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:134 errors:0 dropped:0 overruns:0 frame:0
          TX packets:247 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:24091 (23.5 KiB)  TX bytes:15846 (15.4 KiB)
 
[root@kvm-8 ~]# 
 
brctl shows:
[root@kvm-8 ~]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.bcaec521c8fb yes eth0
vnet0
virbr0 8000.000000000000 yes
[root@kvm-8 ~]# 
 
Any information would be appreciated
Thank you!
 
wade
 
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