KVM bridge 模式

1.安裝軟體包

yum install bridge-utils
      

目前的網卡狀态:

[talen@sn192-168-1-65 etc]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:23:7D:33:CB:E4  
          inet addr:192.168.1.65  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::223:7dff:fe33:cbe4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:117061 errors:0 dropped:0 overruns:0 frame:0
          TX packets:132280 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:19007683 (18.1 MiB)  TX bytes:35575696 (33.9 MiB)

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:198975 errors:0 dropped:0 overruns:0 frame:0
          TX packets:198975 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:352654829 (336.3 MiB)  TX bytes:352654829 (336.3 MiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:F9:2C:D6  
          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:131 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:13812 (13.4 KiB)  TX bytes:11630 (11.3 KiB)

vnet0     Link encap:Ethernet  HWaddr FE:54:00:A0:E5:31  
          inet6 addr: fe80::fc54:ff:fea0:e531/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:52 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2567 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:7108 (6.9 KiB)  TX bytes:135250 (132.0 KiB)
      

修改主控端的網卡配置

cd /etc/sysconfig/network-scripts
ifdown eth0  
      

ifdown eth0
修改eth0網卡的内容為:
DEVICE=eth0
HWADDR=00:23:7d:33:cb:e4
ONBOOT=yes
BRIDGE=br0 

      

建立檔案ifcfg-br0,添加如下内容:

DEVICE=br0
ONBOOT=yes
TYPE=Bridge
BOOTPROTO=static
IPADDR=192.168.1.65
GATEWAY=192.168.1.1
STP=on
DELAY=0
      

重新開機網絡服務:
service network restart
[root@sn192-168-1-65 network-scripts]# ifconfig
br0       Link encap:Ethernet  HWaddr 00:23:7D:33:CB:E4  
          inet addr:192.168.1.65  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::223:7dff:fe33:cbe4/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:345 errors:0 dropped:0 overruns:0 frame:0
          TX packets:353 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:47760 (46.6 KiB)  TX bytes:71238 (69.5 KiB)

eth0      Link encap:Ethernet  HWaddr 00:23:7D:33:CB:E4  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:128269 errors:0 dropped:0 overruns:0 frame:0
          TX packets:144974 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:20594100 (19.6 MiB)  TX bytes:38646348 (36.8 MiB)

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:217668 errors:0 dropped:0 overruns:0 frame:0
          TX packets:217668 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:376131837 (358.7 MiB)  TX bytes:376131837 (358.7 MiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:F9:2C:D6  
          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:131 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:13812 (13.4 KiB)  TX bytes:11630 (11.3 KiB)

vnet0     Link encap:Ethernet  HWaddr FE:54:00:A0:E5:31  
          inet6 addr: fe80::fc54:ff:fea0:e531/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:52 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2973 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:7108 (6.9 KiB)  TX bytes:156362 (152.6 KiB)


      

虛拟機網卡選擇br0就可以了.