网卡绑多ip,及多网卡的bonding

[root@work_monitor ~]# cd /etc/sysconfig/network-scripts/

[root@work_monitor network-scripts]# cp ifcfg-eth0 ifcfg-eth0:0

[root@work_monitor network-scripts]# vi ifcfg-eth0:0

# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0:0
BOOTPROTO=static
HWADDR=00:0C:29:1A:CF:8E
IPADDR=192.168.1.233
BROADCAST=192.168.1.255
NETMASK=255.255.255.0
ONBOOT=yes


[root@work_monitor network-scripts]# /etc/init.d/network restart

[root@work_monitor network-scripts]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:00:5E:00:01:64 
          inet addr:192.168.1.105  Bcast:255.255.255.255  Mask:255.255.255.0
          inet6 addr: fe80::200:5eff:fe00:164/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1889 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2887 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:167638 (163.7 KiB)  TX bytes:373335 (364.5 KiB)
          Interrupt:185 Base address:0x1400

eth0:0    Link encap:Ethernet  HWaddr 00:00:5E:00:01:64 
          inet addr:192.168.1.233  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:185 Base address:0x1400

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:560 (560.0 b)  TX bytes:560 (560.0 b)
即可

　　其中的DEVICE为设备的名称，

　　IPADDR为此设备的IP地址，

　　BROADCAST是广播地址，

　　NETMASK为子网掩码，

　　ONBOOT 表示在系统启动时自动启动。

　　如果需要再绑定多一个IP地址，

　　只需要把文件名和文件内的DEVICE中的eth0:x加一即可。

　　LINUX最多可以支持255个IP别名

bonding

把多块物理网卡绑为一块逻辑网卡,来做到网络负载均衡和网络冗余.

但是需要在交换机上设置连接bonding网卡的两个口子映射为同一个虚拟接口

[root@work_monitor ~]# uname -a
Linux work_monitor 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:21 EST 2007 i686 i686 i386 GNU/Linux

内核2.6的无需编译内核

如果系统不支持还得把Bonding driver support以模块方式编译

[root@work_monitor ~]# modinfo bonding
filename:       /lib/modules/2.6.18-8.el5/kernel/drivers/net/bonding/bonding.ko
author:         Thomas Davis, [e-mail] and many others
description:    Ethernet Channel Bonding Driver, v3.0.3
version:        3.0.3
license:        GPL
srcversion:     2547D22885C2FDF28EF7D98
depends:       
vermagic:       2.6.18-8.el5 SMP mod_unload 686 REGPARM 4KSTACKS gcc-4.1
parm:           max_bonds:Max number of bonded devices (int)
parm:           miimon:Link check interval in milliseconds (int)
parm:           updelay:Delay before considering link up, in milliseconds (int)
parm:           downdelay:Delay before considering link down, in milliseconds (int)
parm:           use_carrier:Use netif_carrier_ok (vs MII ioctls) in miimon; 0 for off, 1 for on (default) (int)
parm:           mode:Mode of operation : 0 for balance-rr, 1 for active-backup, 2 for balance-xor, 3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, 6 for balance-alb (charp)
parm:           primary:Primary network device to use (charp)
parm:           lacp_rate:LACPDU tx rate to request from 802.3ad partner (slow/fast) (charp)
parm:           xmit_hash_policy:XOR hashing method: 0 for layer 2 (default), 1 for layer 3+4 (charp)
parm:           arp_interval:arp interval in milliseconds (int)
parm:           arp_ip_target:arp targets in n.n.n.n form (array of charp)

[root@work_monitor network-scripts]# modinfo bonding

加载bonding模块以支持bonding

[root@work_monitor network-scripts]# lsmod | grep bonding
bonding                75305  0

[root@work_monitor network-scripts]# cp ifcfg-eth0 ifcfg-bond0

DEVICE=bond0
BOOTPROTO=none
IPADDR=192.168.1.172
NETMASK=255.255.255.0
NETWORK=192.168.1.0
BROADCAST=192.168.1.255
ONBOOT=yes
USERCTL=no
GATEWAY=192.168.1.254

vi ifcfg-eth0

DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
MASTER=bond0
SLAVE=yes

vi ifcfg-eth1

DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
MASTER=bond0
SLAVE=yes

vi ifcfg-bond0

DEVICE=bond0
BOOTPROTO=none
IPADDR=192.168.1.172
NETMASK=255.255.255.0
NETWORK=192.168.1.0
BROADCAST=192.168.1.255
ONBOOT=yes
USERCTL=no
GATEWAY=192.168.1.254

vi /etc/modprobe.conf

加入

alias bond0 bonding
options bond0 miimon=100 mode=1 primary=eth0

修改/etc/rc.d/rc.local，加入下面一行

    /sbin/ifenslave bond0 eth0 eth1

就ok了

这里有关于bonding的详细说明