2021年不同vlan之间通信的三种方式

  • 格式:doc
  • 大小:64.00 KB
  • 文档页数:12

不同vlan间的通信简单配置欧阳光明(2021.03.07)1.单臂路由(图)环境:一台路由器,一台二层交换机,两台pc机二层交换机的配置一般模式:Switch>输入enable进入特权模式:Switch>enable输入configure terminal进入全局配置模式:Switch#configure terminalEnter 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 protocol on Interface FastEthernet0/1, changed state to down%LINEPROTO-5-UPDOWN: 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 accessSwitch(config-if)#switchport access vlan 10Switch(config-if)#interface fastEthernet 2/1Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 20到此二层交换机配置完毕!路由器的配置:Router>Router>enableRouter#configure terminalEnter configuration commands, one per line. End with CNTL/Z. Router(config)#inter fas 0/0Router(config-if)#no ip addressRouter(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 state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upRouter(config-if)#exitRouter(config)#int fas 0/0.10%LINK-5-CHANGED: Interface FastEthernet0/0.10, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.10, changed state to upRouter(config-subif)#encapsulation dot1Q 10注意:在配置ip时一定要先封装802.1q协议Router(config-subif)#ip address 192.168.10.1 255.255.255.0Router(config-subif)#no shutdownRouter(config-subif)#int fas 0/0.20%LINK-5-CHANGED: Interface FastEthernet0/0.20, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.20, changed state to upRouter(config-subif)#ip address 192.168.20.1 255.255.255.0% Configuring IP routing on a LAN subinterface is only allowed if that subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q,or ISL vLAN.Router(config-subif)#encapsulation dot1Q 20Router(config-subif)#ip address 192.168.20.1 255.255.255.0Router(config-subif)#no shutdownRouter(config-subif)#查看路由表:Router#show ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area* - candidate default, U - per-user static route, o - ODRP - periodic downloaded static routeGateway of last resort is not setC 192.168.10.0/24 is directly connected, FastEthernet0/0.10C 192.168.20.0/24 is directly connected, FastEthernet0/0.20Router#PC0的配置:ip 192.168.10.10netmask 255.255.255.0gateway 192.168.10.1PC1的配置:ip 192.168.20.20netmask 255.255.255.0gateway 192.168.20.12.使用SVI实现VLAN间的通信(图)环境:一台三层交换机,两台pc机三层交换机的配置:Switch>enableSwitch#configure terminalEnter configuration commands, one per line. End with CNTL/Z.创建vlan 10 20Switch(config)#vlan 10Switch(config-vlan)#vlan 20Switch(config-vlan)#exit配置SVI接口ipSwitch(config)#interface vlan 10%LINK-5-CHANGED: Interface Vlan10, changed state to up Switch(config-if)#ip address 192.168.10.1 255.255.255.0 Switch(config-if)#no shutdownSwitch(config-if)#interface vlan 20%LINK-5-CHANGED: Interface Vlan20, changed state to up Switch(config-if)#ip address 192.168.20.1 255.255.255.0 Switch(config-if)#no shutdownSwitch(config-if)#exit改变接口模式并加入vlanSwitch(config)#interface fastEthernet 0/1Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 10%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to upSwitch(config-if)#interface fastEthernet 0/2Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 20%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to upSwitch(config-if)#看三层交换机的路由表:Switch#show ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGPi - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area* - candidate default, U - per-user static route, o - ODRP - periodic downloaded static routeGateway of last resort is not setC 192.168.10.0/24 is directly connected, Vlan10C 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)环境: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)Switch>enableSwitch#configure terminalEnter configuration commands, one per line. End with CNTL/Z.创建vlan 10 、 20 并设置ipSwitch(config)#vlan 10Switch(config-vlan)#vlan 20Switch(config-vlan)#exitSwitch(config)#interface vlan 10%LINK-5-CHANGED: Interface Vlan10, changed state to up Switch(config-if)#ip address 192.168.10.1 255.255.255.0 Switch(config-if)#no shutdownSwitch(config-if)#interface vlan 20%LINK-5-CHANGED: Interface Vlan20, changed state to up Switch(config-if)#ip address 192.168.20.1 255.255.255.0 Switch(config-if)#no shutdownSwitch(config-if)#exit设置接口模式并加入相应的vlan(注意trunk口的设置)Switch(config)#interface fastEthernet 0/1Switch(config-if)#switchport mode trunkSwitch(config-if)#interface fastEthernet 0/1Switch(config-if)#switchport access vlan 10%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to upSwitch(config)#interface fastEthernet 0/2Switch(config-if)#switchport mode trunkSwitch(config-if)#interface fastEthernet 0/2Switch(config-if)#switchport access vlan 20%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to upSwitch#SW21的配置Switch>enableSwitch#configure terminalEnter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan 10Switch(config-vlan)#exitSwitch(config)#interface fastEthernet 0/1Switch(config-if)#switchport mode trunk%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to upSwitch(config-if)#interface fastEthernet 1/1Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 10Switch(config-if)#exitSwitch(config)#SW22的配置Switch>Switch>enSwitch#Switch#configure terEnter configuration commands, one per line. End with CNTL/Z.Switch(config-if)#inter fas 2/1Switch(config-if)#switchport mode trunk%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/1, changed state to down%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/1, changed state to upSwitch(config-if)#exitSwitch(config)#vlan 20Switch(config-vlan)#inter fas 1/1Switch(config-if)#switchport access vlan 20 Switch(config-if)#注意: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:。