linux下VLAN设置

1. 安装vlan(vconfig)和加载8021q模块

[root@test0001~]#yum install vconfig

[root@test0001~]#modprobe 8021q

[root@test0001~]#lsmod |grep -i 8021q

2. 在eth0接口上配置两个VLAN

[root@test0001~]#vconfig add eth0 100

Added VLAN with VID == 100 to IF -:eth0:-

[root@test0001~]#vconfig add eth0 200

Added VLAN with VID == 200 to IF -:eth0:-

3. 设置VLAN的REORDER_HDR参数,默认就行了

[root@test0001~]#vconfig set_flag eth0.100 1 1

Set flag on device -:eth0.100:- Should be visible in /proc/net/vlan/eth0.100

[root@test0001~]#vconfig set_flag eth0.200 1 1

Set flag on device -:eth0.200:- Should be visible in /proc/net/vlan/eth0.200

4. 配置网络信息

[root@test0001~]#ifconfig eth0 0.0.0.0

[root@test0001~]#ifconfig eth0.100 172.16.1.8 netmask 255.255.255.0 up

[root@test0001~]#ifconfig eth0.200 172.16.2.8 netmask 255.255.255.0 up

或者创建/etc/sysconfig/network-scrips/ifcfg-eth0.100,内容参考如下:

DEVICE=eth0.100
IPADDR=192.168.0.1
NETMASK=255.255.255.0
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
VLAN=yes

5. 删除VLAN命令

[root@test0001~]#vconfig rem eth0.100

Removed VLAN -:eth0.100:-

[root@test0001~]#vconfig rem eth0.200

Removed VLAN -:eth0.200:-

6. 将VLAN信息写入配置文件 
#echo "modprobe 8021q">>/etc/rc.local 
开机加载8021q模块,或者使用echo "8021q">>/etc/modules

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