#mkdirbackup
#cpifcfg-eth0backup/
创建br0配置文件：
#vim ifcfg-br0
这是eth0的原配置文件：
#cat ifcfg-eth0
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DEVICE=eth0
HWADDR=B8:70:F4:40:8A:20
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=110.65.97.227
PREFIX=22
GATEWAY=110.65.96.1
DNS1=202.192.72.33
DNS2=8.8.8.8
修改eth0的配置文件：
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DEVICE=eth0
#HWADDR=B8:70:F4:40:8A:20
TYPE=Ethernet
#UUID=bee6af6c-4e20-4d28-81cd-8870b9d40ea9
ONBOOT=yes
NM_CONTROLLED=none
BOOTPROTO=none
#IPADDR=110.65.97.227
#PREFIX=22
#GATEWAY=110.65.96.1
#DNS1=202.192.72.33
#DNS2=8.8.8.8
BRIDGE=br0
尝试重启network服务：
[root@zsmin network-scripts]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [
OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Error: Connection
activation failed: Master connection not found or invalid
[FAILED]
Bringing up interface wlan0: Error: No suitable
device found: no device found for connection 'wlan0'.
[FAILED]
Bringing up interface br0: Error: Connection
activation failed: Failed to determine connection's virtual
interface name
[FAILED]
报错了。
这个需要我们关闭NetworkManager
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#serviceNetworkManagerstop
#chkconfigNetworkManageroff
这时候，右上角的两台小电脑就会不见了。
再一次重启服务：
# service network restart
Shutting down loopback interface: [
OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK
]
Bringing up interface wlan0: Device does not seem
to be present, delaying initialization.
[FAILED]
Bringing up interface br0: Determining if ip
address 110.65.97.227 is already in use for device br0...
[ OK
]
[root@zsmin network-scripts]# ifconfig br0
br0 Link
encap:Ethernet HWaddr B8:70:F4:40:8A:20
inet addr:24.155.108.210
Bcast:24.255.255.255
Mask:255.0.0.0
inet6 addr:
2001:da8::a438:ba70:f4ff:fe40:8a20/64 Scope:Global
inet6 addr:
fe80::ba70:f4ff:fe40:8a20/64 Scope:Link
UP BROADCAST RUNNING MULTICAST
MTU:1500 Metric:1
RX packets:0 errors:0
dropped:0 overruns:0 frame:0
TX packets:1058 errors:0
dropped:0 overruns:0 carrier:0
collisions:0
txqueuelen:0
RX bytes:2169121 (2.0 MiB)
TX bytes:245674 (239.9 KiB)
[root@zsmin network-scripts]# ifconfig eth0
eth0 Link
encap:Ethernet HWaddr B8:70:F4:40:8A:20
inet6 addr:
fe80::ba70:f4ff:fe40:8a20/64 Scope:Link
UP BROADCAST RUNNING MULTICAST
MTU:1500 Metric:1
RX packets:145869 errors:0
dropped:0 overruns:0 frame:0
TX packets:13314 errors:0
dropped:0 overruns:0 carrier:1
collisions:0
txqueuelen:1000
RX bytes:24030233 (22.9 MiB)
TX bytes:1933211 (1.8 MiB)
[root@zsmin network-scripts]# ping
PING (74.125.128.103) 56(84) bytes of data.
64 bytes from hg-in- (74.125.128.103): icmp_seq=1
ttl=38 time=96.3 ms
64 bytes from hg-in- (74.125.128.103): icmp_seq=2
ttl=38 time=96.1 ms
^C
--- ping statistics ---
3 packets transmitted, 2 received, 33% packet loss, time 2031ms
rtt min/avg/max/mdev = 96.103/96.231/96.360/0.335 ms
之后，kvm虚拟机里面网卡设置就会出现br0了。
