Linux 系统双网卡绑定配置实现

系统版本

[root@ ~]# cat /etc/redhat-release 

CentOS release 6.8 (Final)

[root@ ~]# uname -r

2.6.32-642.6.1.el6.x86_64

网卡说明

eth0   192.168.1.8（服务器外网卡）
eth1
eth2
两块服务器网卡(内网)

关闭防火墙

[root@ ~]# /etc/init.d/iptables stop

[root@ ~]# chkconfig iptables off

关闭selinux

[root@ ~]#setenforce 0 
[root@ ~]#sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/‘ /etc/selinux/config

禁用NetworkManager

[root@ ~]# /etc/init.d/NetworkManager stop

Stopping NetworkManager daemon:      [ OK ]

[root@ ~]# chkconfig NetworkManager off

[root@ ~]# /etc/init.d/network restart

编辑eth1网卡

[root@ ~]# cd /etc/sysconfig/network-scripts/
[root@ network-scripts\]# cat >ifcfg-eth1 <<EOF
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
MASTER=bind0
EOF

编辑eth2网卡

[root@ network-scripts]# cat >ifcfg-eth2 <<EOF    
DEVICE=eth2
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
MASTER=bind0
EOF

编辑bind0网卡

[root@ network-scripts]# cat >ifcfg-bind0 <<EOF
DEVICE=bind0
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=none
IPADDR=10.0.0.8
NETMASK=255.255.255.0
GATEWAY=10.0.0.254
IPV6INIT=no
USERCTL=no
EOF

配置bond参数

[root@ network-scripts]# cat >/etc/modprobe.conf <<EOF
alias bind0 bonding
options bind0 miimon=100 mode=6
EOF

加入开机自启动(/etc/rc.local)

[root@ network-scripts]# cat >>/etc/rc.local <<EOF

ifenslave bind0 eth1 eth2

EOF

重启网络服务

[root@LVS-2 network-scripts]# service network restart

Shutting down interface eth0:               [ OK ]

Shutting down interface eth1:               [ OK ]

Shutting down interface eth2:               [ OK ]

Shutting down loopback interface:            [ OK ]

Bringing up loopback interface:              [ OK ]

Bringing up interface bind0: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.

WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/.

Determining if ip address 10.0.0.8 is already in use for device bind0..[ OK ]

Bringing up interface eth0: Determining if ip address 192.168.1.8 is already in use for device eth0...                          [ OK ]

Bringing up interface eth1: RTNETLINK answers: File exists     [ OK ]

Bringing up interface eth2: RTNETLINK answers: File exists [ OK ]

配置使绑定立即生效

[root@LVS-2 network-scripts]# ifenslave bind0 eth1 eth2

测试联通

[root@LVS-2 network-scripts]# ping 10.0.0.8

PING 10.0.0.8 (10.0.0.8) 56(84) bytes of data.

64 bytes from 10.0.0.8: icmp_seq=1 ttl=64 time=0.089 ms

64 bytes from 10.0.0.8: icmp_seq=2 ttl=64 time=0.046 ms

^C

--- 10.0.0.8 ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 1921ms

rtt min/avg/max/mdev = 0.046/0.067/0.089/0.023 ms

此时会发现系统多一个网卡

[root@LVS-2 network-scripts]# ifconfig bind0

bind0 

Link encap:Ethernet HWaddr 00:0C:29:CC:9B:5 

inet addr:10.0.0.8 Bcast:10.0.0.255 Mask:255.255.255.0

inet6 addr: fe80::20c:29ff:fecc:9b55/64 Scope:LinkUP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1

RX packets:151 errors:0 dropped:0 overruns:0 frame:0

TX packets:3 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0 

RX bytes:11826 (11.5 KiB) TX bytes:258 (258.0 b)

到此这篇关于Linux 系统双网卡绑定配置实现的文章就介绍到这了,更多相关Linux 双网卡绑定配置内容请搜索易盾网络以前的文章或继续浏览下面的相关文章希望大家以后多多支持易盾网络！