Centos6上kvm虚拟化配置vlan网络模式

前提：

一、在物理机上

1、检查是否支持8021q

[root@node1 ~]# lsmod | grep 8021q
8021q                  25317  0
garp                    7152  1 8021q

2、在物理机上增加2个vlan( 注意前提是这2个vlan必须在物理交换机上面已经存在）,必须每次执行这些，并重启网络。

[root@node1 ~]# vconfig add eth1 401
Added VLAN with VID == 401 to IF -:eth1:-

[root@node1 ~]# vconfig add eth1 402
Added VLAN with VID == 402 to IF -:eth1:-

3、验证如下：

[root@node1 ~]#ifconfig

vnet0     Link encap:Ethernet  HWaddr FE:54:00:35:92:92
inet6 addr: fe80::fc54:ff:fe35:9292/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:496 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:300 (300.0 b)  TX bytes:26240 (25.6 KiB)

vnet1     Link encap:Ethernet  HWaddr FE:54:00:39:D0:41
inet6 addr: fe80::fc54:ff:fe39:d041/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:490 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:300 (300.0 b)  TX bytes:25896 (25.2 KiB)

4、增加这2个vlan的配置

[root@node1 network-scripts]# vi ifcfg-br401
DEVICE="br401"
TYPE=Bridge
ONBOOT="yes"

[root@node1 network-scripts]# vi ifcfg-eth1.401
DEVICE="eth1.401"
BRIDGE="br401"
ONBOOT="yes

[root@node1 network-scripts]# vi ifcfg-br402
DEVICE="br402"
TYPE=Bridge
ONBOOT="yes"

[root@node1 network-scripts]# vi ifcfg-eth1.402
DEVICE="eth1.402"
BRIDGE="br402"
ONBOOT="yes

5、重启网络

[root@node1 ~]# /etc/init.d/network restart

6、重启网络之后，验证如下：

[root@node1 ~]# ifconfig
br401     Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0E
inet6 addr: fe80::5ef3:fcff:feb7:df0e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

br402     Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0E
inet6 addr: fe80::5ef3:fcff:feb7:df0e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)

eth0      Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0C
inet addr:192.168.62.150  Bcast:192.168.62.191  Mask:255.255.255.192
inet6 addr: fe80::5ef3:fcff:feb7:df0c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:8807 errors:0 dropped:0 overruns:0 frame:0
TX packets:13705 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1209387 (1.1 MiB)  TX bytes:16803742 (16.0 MiB)

eth1      Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0E
inet6 addr: fe80::5ef3:fcff:feb7:df0e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:2923 errors:0 dropped:0 overruns:0 frame:0
TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:291845 (285.0 KiB)  TX bytes:3820 (3.7 KiB)

eth1.401  Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0E
UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
RX packets:233 errors:0 dropped:0 overruns:0 frame:0
TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15591 (15.2 KiB)  TX bytes:1488 (1.4 KiB)

eth1.402  Link encap:Ethernet  HWaddr 5C:F3:FC:B7:DF:0E
UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
RX packets:115 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:16079 (15.7 KiB)  TX bytes:692 (692.0 b)

eth2      Link encap:Ethernet  HWaddr 00:1B:21:C0:56:70
inet6 addr: fe80::21b:21ff:fec0:5670/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b)  TX bytes:26586 (25.9 KiB)
Memory:97a80000-97b00000

eth3      Link encap:Ethernet  HWaddr 00:1B:21:C0:56:71
inet6 addr: fe80::21b:21ff:fec0:5671/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:266 errors:0 dropped:0 overruns:0 frame:0
TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:17922 (17.5 KiB)  TX bytes:2646 (2.5 KiB)
Memory:97a00000-97a80000

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:195275 errors:0 dropped:0 overruns:0 frame:0
TX packets:195275 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:196514662 (187.4 MiB)  TX bytes:196514662 (187.4 MiB)

virbr0    Link encap:Ethernet  HWaddr 52:54:00:78:65:D5
inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:460 (460.0 b)  TX bytes:0 (0.0 b)

7、ifcfg-eth1的配置

[root@node1 ~]#ifcfg-eth1
DEVICE=eth1
HWADDR=5C:F3:FC:B7:DF:0E
TYPE=Ethernet
UUID=ccc25098-ac10-46b9-936c-f5db3155ecd9
ONBOOT=yes
NM_CONTROLLED=no
#BOOTPROTO=dhcp ---》不需要

二、虚拟机的配置

1、验证eth1.401网络

2、验证eth1.402网络

3、配置虚拟机test1的网卡1选择eth1.401网络

三、

1、启动虚拟机test1之前

[root@node1 ~]# brctl show
bridge name     bridge id               STP enabled     interfaces
br401           8000.5cf3fcb7df0e      no                  eth1.401
br402           8000.5cf3fcb7df0e      no                  eth1.402
virbr0           8000.5254007865d5   yes                  virbr0-nic
[root@node1 ~]#

2、启动虚拟机test1之后

[root@node1 ~]# brctl show
bridge name     bridge id               STP enabled     interfaces
br401           8000.5cf3fcb7df0e       no                  eth1.401
vnet0
br402           8000.5cf3fcb7df0e       no                  eth1.402
virbr0           8000.5254007865d5     yes                 virbr0-nic