不同vlan之间通信的三种方式Word文档下载推荐.docx

1、Enter configuration commands, one per line. End with CNTL/Z.创建vlan 10 和 vlan 20：Switch（config）#vlan 10Switch（config-vlan）#vlan 20Switch（config-vlan）# exit进入接口配置模式：Switch（config）#interface fastEthernet 0/1把0/1变成trunk口（默认是access口）Switch（config-if）#switchport mode trunk%LINEPROTO-5-UPDOWN: Line protoco

2、l on Interface FastEthernet0/1, changed state to down Line protocol on Interface FastEthernet0/1, changed state to upSwitch（config-if）#exit进入接口配置模式分别把对应的接口，加入对应的vlan：Switch（config）#interface fastEthernet 1/1Switch（config-if）#switchport mode access Switch（config-if）#switchport access vlan 10Switch（co

3、nfig-if）#interface fastEthernet 2/1Switch（config-if）#switchport access vlan 20到此二层交换机配置完毕！路由器的配置：RouterRouter#configure terminal Router（config）#inter fas 0/0Router（config-if）#no ip address Router（config-if）#no shutdown 注意：单臂路由的配置父接口一定要no shutdown%LINK-5-CHANGED: Interface FastEthernet0/0, changed st

4、ate to up Line protocol on Interface FastEthernet0/0, changed state to upRouter（config-if）#exitRouter（config）#int fas 0/0.10 Interface FastEthernet0/0.10, changed state to up Line protocol on Interface FastEthernet0/0.10, changed state to upRouter（config-subif）#encapsulation dot1Q 10在配置ip时一定要先封装802.

5、1q协议Router（config-subif）#ip address 192.168.10.1 255.255.255.0Router（config-subif）#no shutdown Router（config-subif）#int fas 0/0.20 Interface FastEthernet0/0.20, changed state to up Line protocol on Interface FastEthernet0/0.20, changed state to upRouter（config-subif）#ip address 192.168.20.1 255.255.

6、255.0% Configuring IP routing on a LAN subinterface is only allowed if thatsubinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,or ISL vLAN.Router（config-subif）#encapsulation dot1Q 20Router（config-subif）#查看路由表：Router#show ip route Codes: C - connected, S - static, I - IGRP, R -

7、RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate

8、default, U - per-user static route, o - ODR P - periodic downloaded static routeGateway of last resort is not setC 192.168.10.0/24 is directly connected, FastEthernet0/0.10 192.168.20.0/24 is directly connected, FastEthernet0/0.20Router#PC0的配置：ip 192.168.10.10netmask 255.255.255.0gateway 192.168.10.

9、1PC1的配置：ip 192.168.20.20gateway 192.168.20.12.使用SVI实现VLAN间的通信（图）一台三层交换机，两台pc机三层交换机的配置：enable 创建vlan 10 20Switch（config-vlan）#exit配置SVI接口ipSwitch（config）#interface vlan 10 Interface Vlan10, changed state to upSwitch（config-if）#ip address 192.168.10.1 255.255.255.0Switch（config-if）#no shutdown Switch（

10、config-if）#interface vlan 20 Interface Vlan20, changed state to upSwitch（config-if）#ip address 192.168.20.1 255.255.255.0改变接口模式并加入vlan Line protocol on Interface Vlan10, changed state to upSwitch（config-if）#interface fastEthernet 0/2 Line protocol on Interface Vlan20, changed state to upSwitch（confi

11、g-if）#看三层交换机的路由表：Switch#show ip route 192.168.10.0/24 is directly connected, Vlan10 192.168.20.0/24 is directly connected, Vlan20Switch#两主机的配置与单臂路由中两主机的配置一样3.跨交换机实现VLAN间的通信（图）一台三层交换机，两台二层交换机，两台pc机三层交换机的配置（SW3）创建vlan 10 、20 并设置ipSwitch（config）#vlan 10设置接口模式并加入相应的vlan（注意trunk口的设置）Switch（config）#interf

12、ace fastEthernet 0/1Switch（config-if）#interface fastEthernet 0/1Switch（config）#interface fastEthernet 0/2Switch（config-if）#switchport mode trunk SW21的配置Switch#configure terminal Switch（config-if）#interface fastEthernet 1/1Switch（config）#SW22的配置enSwitch#configure terSwitch（config-if）#inter fas 2/1 Line protocol on Interface FastEthernet2/1, changed state to down Line protocol on Interface FastEthernet2/1, changed state to upSwitch（config）#vlan 20Switch（config-vlan）#inter fas 1/1两交换机之间的链接是trunk链路4.以上配置在模拟器上都可实现在模拟器上配置其中pc图片上述三种方式pc机的配置都一样验证：