centos5.6网卡绑定,配置多IP地址负载均衡

1、修改/etc/modprobe.conf

alias  bond0  bonding
options  bond0  miimon=100  mode=0

2、修改ifcfg-eth0/1

vim /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=none
HWADDR=00:1B:21:72:76:04
ONBOOT=yes
#IPADDR=192.168.10.25
#NETMASK=255.255.255.0
MASTER=bond0
SLAVE=yes
HOTPLUG=no

vim /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
HWADDR=00:1B:21:72:76:05
ONBOOT=yes
BOOTPROTO=none
#IPADDR=192.168.10.26
#NETMASK=255.255.255.0
#GATEWAY=192.168.10.1
MASTER=bond0
SLAVE=yes
HOTPLUG=no

新建ifcfg-bond0 bond0:0 bond0:1 并修改配置如下：

[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
HOTPLUG=no
TYPE=Ethernet
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0:0
DEVICE=bond0:0
BOOTPROTO=none
ONBOOT=yes
HOTPLUG=no
TYPE=Ethernet
IPADDR=192.168.10.25
NETMASK=255.255.255.0
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0:1
DEVICE=bond0:1
BOOTPROTO=none
ONBOOT=yes
HOTPLUG=no
TYPE=Ethernet
IPADDR=192.168.10.26
NETMASK=255.255.255.0

记得配上网关与dns

[root@localhost ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=local_test
GATEWAY=192.168.10.254

[root@localhost ~]# cat /etc/resolv.conf
search localdomain
nameserver 202.96.134.133
nameserver 202.96.128.68

改完之后最好认真检查一遍，最后重启网络服务生效生效哦。。。

service network restart
或
/etc/init.d/network restart

再个最后 ，看下成果ifconfig

[root@localhost ~]#ifconfig

bond0     Link encap:Ethernet  HWaddr 00:1B:21:72:76:04
          inet6 addr: fe80::21b:21ff:fe72:7604/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:29339967287 errors:0 dropped:0 overruns:6481 frame:0
          TX packets:24178097116 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:8343201568017 (7.5 TiB)  TX bytes:4275190529231 (3.8 TiB)

bond0:0   Link encap:Ethernet  HWaddr 00:1B:21:72:76:04
          inet addr:192.168.10.25  Bcast:  Mask:255.255.255.0
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

bond0:1   Link encap:Ethernet  HWaddr 00:1B:21:72:76:04
          inet addr:192.168.10.26  Bcast:  Mask:255.255.255.0
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

eth0      Link encap:Ethernet  HWaddr 00:1B:21:72:76:04
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:5479527332 errors:0 dropped:0 overruns:3472 frame:0
          TX packets:19809065892 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1576807725210 (1.4 TiB)  TX bytes:3504924699492 (3.1 TiB)
          Memory:df3c0000-df3e0000

eth1      Link encap:Ethernet  HWaddr 00:1B:21:72:76:04
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:23860440060 errors:0 dropped:0 overruns:3009 frame:0
          TX packets:4369031263 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:6766393860865 (6.1 TiB)  TX bytes:770265833945 (717.3 GiB)
          Memory:df3e0000-df400000

更多配置详细信息请参考以下稀世珍图：

本文出自 “dmxjay” 博客，谢绝转载！