network problems with some cloned vm

[xuteng <xuteng@xxxxxxxxxx>]

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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