1、执行setup命令-->网络配置-->本例中四块网卡。
2、ifconfig列出四块网卡。
3、我们的目标，绑定eth0和eth1两块网卡作为公网网卡，ip设置为192.168.0.51
4、首先备份两块网卡的配置文件
Mv/etc/sysconfig/network-scripts/ifcfg-eth0/etc/sysconfig/bak_network-scripts/ifcfg-eth0_bak
Mv /etc/sysconfig/network-scripts/ifcfg-eth1 /etc/sysconfig/bak_network-scripts/ifcfg-eth1_bak
5、重新创建ifcfg-eth0网卡配置文件
vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
SLAVE=yes
MASTER=bond0
BOOTPROTO=none
6、重建eth1网卡配置文件
vi /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
USERCTL=no
ONBOOT=yes
SLAVE=yes
MASTER=bond0
BOOTPROTO=none
7、创建bond0虚拟网卡配置文件
Vi /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
IPADDR=192.168.0.51
NETMASK=255.255.255.0
USERCTL=no
BOOTPROTO=none
ONBOOT=yes
GATEWAY=192.168.0.1
IPV6INIT=no
TYPE=Ethernet
#DNS1=192.168.0.1
8、修改配置文件/etc/modprobe.d/dist.conf
vi dist.conf
最后新增如下两行：
alias bond0 bonding
options bond0 miimon=100 mode=0
mode=0表示做负载均衡
[root@rac1 modprobe.d]# modprobe bonding [root@rac1 modprobe.d]# lsmod |grep bond bonding 127331 0 8021q 25317 1 bonding ipv6 321422 30 bonding,ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6
[root@rac1 network-scripts]# cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.6.0 (September 26,2009) Bonding Mode: load balancing (round-robin) MII Status: up MII Polling Interval (ms): 0 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: eth0 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 08:00:27:fc:7e:5b Slave queue ID: 0 Slave Interface: eth1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 08:00:27:6f:e3:9d Slave queue ID: 0 [root@rac1 network-scripts]#
13、查看ifconfig
[root@rac1 network-scripts]# ifconfig
bond0 Link encap:Ethernet HWaddr 08:00:27:FC:7E:5B
inet addr:192.168.0.51 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fefc:7e5b/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:4135 errors:0 dropped:0 overruns:0 frame:0
TX packets:2025 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:375692 (366.8 KiB) TX bytes:261792 (255.6 KiB)
eth0 Link encap:Ethernet HWaddr 08:00:27:FC:7E:5B
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:3394 errors:0 dropped:0 overruns:0 frame:0
TX packets:1640 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:304735 (297.5 KiB) TX bytes:219122 (213.9 KiB)
eth1 Link encap:Ethernet HWaddr 08:00:27:FC:7E:5B
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:742 errors:0 dropped:0 overruns:0 frame:0
TX packets:387 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:71017 (69.3 KiB) TX bytes:43378 (42.3 KiB)
eth2 Link encap:Ethernet HWaddr 08:00:27:18:29:48
inet addr:192.168.0.7 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe18:2948/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:862 errors:0 dropped:0 overruns:0 frame:0
TX packets:113 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:77480 (75.6 KiB) TX bytes:12978 (12.6 KiB)
eth3 Link encap:Ethernet HWaddr 08:00:27:59:1E:79
inet addr:192.168.0.99 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe59:1e79/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:768 errors:0 dropped:0 overruns:0 frame:0
TX packets:42 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:73511 (71.7 KiB) TX bytes:2732 (2.6 KiB)
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:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:728 (728.0 b) TX bytes:728 (728.0 b)
[root@rac1 network-scripts]#
