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利用路由器实现单层交换机不同VLAN之间互通教程

17-10-17 来源：[db:作者]

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实验的一些简单配置

首先配置PC机

PC1 IP:192.168.1.1 子网掩码：255.255.255.0 网关：192.168.1.254

PC2 IP:192.168.1.2 子网掩码：255.255.255.0 网关：192.168.1.254

PC3 IP:192.168.2.1 子网掩码：255.255.255.0 网关：192.168.2.254

PC4 IP:192.168.2.2 子网掩码：255.255.255.0 网关：192.168.2.254

PC1与交换机SW1连口f0/1 PC2与交换机SW1连口f0/2 PC3与交换机SW2连口f0/1 PC4与交换机连口f0/2

交换机SW1与交换机SW2连口f0/3

路由器口g0/0与交换机SW1连口f0/4 路由器口g0/1与交换机连口f0/4

注意(红色字体为关键命令)

进入交换机SW1

Switch>enable //切换模式

Switch#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

Switch(config)#hostnameSW1 //修改主机名

SW1(config)#vlan10 //创建虚拟局域网

SW1(config-vlan)#vlan20

SW1(config-vlan)#exit //退出

SW1(config)#interfacefastEthernet0/1 //进入端口f0/1

SW1(config-if)#switchportmodeaccess //切换端口模式

SW1(config-if)#switchportaccessvlan10 // 将端口f0/1加入vlan 10

SW1(config-if)#exit

SW1(config)#interfacefastEthernet0/2

SW1(config-if)#switchportmodeaccess

SW1(config-if)#switchportaccessvlan20

SW1(config-if)#exit

SW1(config)#interfacefastEthernet0/4

SW1(config-if)#switchportmodeaccess

SW1(config-if)#switchportaccessvlan20

SW1(config-if)#exit

SW1(config)#interfacefastEthernet0/3

SW1(config-if)#switchportmodetrunk //将f0/3端口模式trunk

SW1(config-if)#

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/3,changedstatetodown

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/3,changedstatetoup

SW1(config-if)#exit

SW1(config)#exit

SW1#showvlan //查看vlan

VLANNameStatusPorts

----------------------------------------------------------------------------

1defaultactiveFa0/5,Fa0/6,Fa0/7,Fa0/8

Fa0/9,Fa0/10,Fa0/11,Fa0/12

Fa0/13,Fa0/14,Fa0/15,Fa0/16

Fa0/17,Fa0/18,Fa0/19,Fa0/20

Fa0/21,Fa0/22,Fa0/23,Fa0/24

Gig0/1,Gig0/2

10VLAN0010activeFa0/1,Fa0/4

20VLAN0020activeFa0/2

1002fddi-defaultact/unsup

1003token-ring-defaultact/unsup

1004fddinet-defaultact/unsup

1005trnet-defaultact/unsup

VLANTypeSAIDMTUParentRingNoBridgeNoStpBrdgModeTrans1Trans2

--------------------------------------------------------------------

1enet1000011500-----00

10enet1000101500-----00

20enet1000201500-----00

1002fddi1010021500-----00

1003tr1010031500-----00

1004fdnet1010041500---ieee-00

1005trnet1010051500---ibm-00

RemoteSPANVLANs

------------------------------------------------------------------------------

PrimarySecondaryTypePorts

---------------------------------------------------------------------------

进行交换机SW2的配置

Switch>

Switch>enable

Switch#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

Switch(config)#hostname

Switch(config)#hostnameSW2

SW2(config)#vlan10

SW2(config-vlan)#vlan20

SW2(config-vlan)#exit

SW2(config)#interfacefastethernet0/1

SW2(config-if)#switchportmodeaccess

SW2(config-if)#switchportaccessvlan10

SW2(config-if)#exit

SW2(config)#interfacefastethernet0/4

SW2(config-if)#switchportmodeaccess

SW2(config-if)#switchportaccessvlan10

SW2(config-if)#exit

SW2(config)#interfacefastethernet0/2

SW2(config-if)#switchportmodeaccess

SW2(config-if)#switchportaccessvlan20

SW2(config-if)#exit

SW2(config)#exit

SW2#

%SYS-5-CONFIG_I:Configuredfromconsolebyconsole

SW2#showinterfacestrunk //查看端口trunk

PortModeEncapsulationStatusNativevlan

Fa0/3auton-802.1qtrunking1

PortVlansallowedontrunk

Fa0/31-1005

PortVlansallowedandactiveinmanagementdomain

Fa0/31,10,20

PortVlansinspanningtreeforwardingstateandnotpruned

Fa0/31,10,20

SW2#

SW2#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

SW2(config)#exit

SW2#

%SYS-5-CONFIG_I:Configuredfromconsolebyconsole

SW2#showvlan

VLANNameStatusPorts

----------------------------------------------------------------------------

1defaultactiveFa0/5,Fa0/6,Fa0/7,Fa0/8

Fa0/9,Fa0/10,Fa0/11,Fa0/12

Fa0/13,Fa0/14,Fa0/15,Fa0/16

Fa0/17,Fa0/18,Fa0/19,Fa0/20

Fa0/21,Fa0/22,Fa0/23,Fa0/24

Gig0/1,Gig0/2

10VLAN0010activeFa0/1,Fa0/4

20VLAN0020activeFa0/2

1002fddi-defaultact/unsup

1003token-ring-defaultact/unsup

1004fddinet-defaultact/unsup

1005trnet-defaultact/unsup

VLANTypeSAIDMTUParentRingNoBridgeNoStpBrdgModeTrans1Trans2

--------------------------------------------------------------------

1enet1000011500-----00

10enet1000101500-----00

20enet1000201500-----00

1002fddi1010021500-----00

1003tr1010031500-----00

1004fdnet1010041500---ieee-00

1005trnet1010051500---ibm-00

RemoteSPANVLANs

------------------------------------------------------------------------------

PrimarySecondaryTypePorts

---------------------------------------------------------------------------

SW2#

进行路由器的配置

Router>enable

Router#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

Router(config)#interfaceg0/0

Router(config-if)#ipaddress192.168.2.254255.255.255.0 //配置网关(与PC机的网关一致)

Router(config-if)#noshutdown //打开端口

Router(config-if)#

%LINK-5-CHANGED:InterfaceGigabitEthernet0/0,changedstatetoup

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceGigabitEthernet0/0,changedstatetoup

Router(config-if)#exit

Router(config)#interfaceg0/1

Router(config-if)#ipaddress192.168.1.254255.255.255.0

Router(config-if)#noshutdown

Router(config-if)#

%LINK-5-CHANGED:InterfaceGigabitEthernet0/1,changedstatetoup

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceGigabitEthernet0/1,changedstatetoup

Router(config-if)#exit

Router(config)#exit

Router#

%SYS-5-CONFIG_I:Configuredfromconsolebyconsole

Router#showiproute //查看路由表

Codes:L-local,C-connected,S-static,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

192.168.1.0/24isvariablysubnetted,2subnets,2masks

C192.168.1.0/24isdirectlyconnected,GigabitEthernet0/1

L192.168.1.254/32isdirectlyconnected,GigabitEthernet0/1

192.168.2.0/24isvariablysubnetted,2subnets,2masks

C192.168.2.0/24isdirectlyconnected,GigabitEthernet0/0

L192.168.2.254/32isdirectlyconnected,GigabitEthernet0/0

Router#

实验结果

PacketTracerPCCommandLine1.0

PC>ping192.168.1.2

Pinging192.168.1.2with32bytesofdata:

Replyfrom192.168.1.2:bytes=32time=2msTTL=128

Replyfrom192.168.1.2:bytes=32time=0msTTL=128

Pingstatisticsfor192.168.1.2:

Packets:Sent=4,Received=4,Lost=0(0%loss),

Approximateroundtriptimesinmilli-seconds:

Minimum=0ms,Maximum=2ms,Average=0ms

PC>ping192.168.2.1

Pinging192.168.2.1with32bytesofdata:

Requesttimedout.

Replyfrom192.168.2.1:bytes=32time=0msTTL=127

Replyfrom192.168.2.1:bytes=32time=1msTTL=127

Replyfrom192.168.2.1:bytes=32time=0msTTL=127

Pingstatisticsfor192.168.2.1:

Packets:Sent=4,Received=3,Lost=1(25%loss),

Approximateroundtriptimesinmilli-seconds:

Minimum=0ms,Maximum=1ms,Average=0ms

PC>ping192.168.2.2

Pinging192.168.2.2with32bytesofdata:

Requesttimedout.

Replyfrom192.168.2.2:bytes=32time=0msTTL=127

Pingstatisticsfor192.168.2.2:

Packets:Sent=4,Received=3,Lost=1(25%loss),

Approximateroundtriptimesinmilli-seconds:

Minimum=0ms,Maximum=0ms,Average=0ms

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