| 路由器怎么设置 路由器全部怎么安装 路由器怎么设置 路由器亮红灯哪种故障 路由器登录入口和光猫的区别 路由器怎么重启 路由器怎么连接 路由器桥接教程详细 路由器干什么用：如何实现同一路由器不同vlan之间的通信不同vlan之间如何通信 一、如何实现同一路由器不同vlan之间的通信 1．单臂路由(图) 环境：收到其他维修同行的一台路由器，收到其他维修同行的一台二层交换机，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 terminal Enter configuration commands, one per line. End with CNTL/Z. 创建vlan 10 和 vlan 20： Switch(config)#vlan 10 Switch(config-vlan)#vlan 20 Switch(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 up Switch(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 1/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#interface fastEthernet 2/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20 到此而层交换机配置完毕！ 路由器的配置： Router> Router>enable Router#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#inter fas 0/0 Router(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 state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up Router(config-if)#exit Router(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 up Router(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 192.168.10.1 255.255.255.0 Router(config-subif)#no shutdown Router(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 up Router(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 20 Router(config-subif)#ip address 192.168.20.1 255.255.255.0 Router(config-subif)#no shutdown Router(config-subif)# 查看路由表： Router#show ip route Codes: C - connected, S - static, I - IGRP, R - 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 default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set C 192.168.10.0/24 is directly connected, FastEthernet0/0.10 C 192.168.20.0/24 is directly connected, FastEthernet0/0.20 Router# PC0的配置： ip 192.168.10.10 netmask 255.255.255.0 gateway 192.168.10.1 PC1的配置： ip 192.168.20.20 netmask 255.255.255.0 gateway 192.168.20.1 2.使用SVI实现VLAN间的通信（图） 环境：收到其他维修同行的一台三层交换机，两台pc机 三层交换机的配置： Switch>enable Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. 创建vlan 10 20 Switch(config)#vlan 10 Switch(config-vlan)#vlan 20 Switch(config-vlan)#exit 配置SVI接口ip Switch(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 shutdown Switch(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 shutdown Switch(config-if)#exit 改变接口模式并加入vlan Switch(config)#interface fastEthernet 0/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to up Switch(config-if)#interface fastEthernet 0/2 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 20 %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to up Switch(config-if)# 看三层交换机的路由表： Switch#show ip route Codes: C - connected, S - static, I - IGRP, R - 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 default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set C 192.168.10.0/24 is directly connected, Vlan10 C 192.168.20.0/24 is directly connected, Vlan20 Switch# 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：收到其他维修同行的一台三层交换机，两台二层交换机，两台pc机 三层交换机的配置(SW3) Switch>enable Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. 创建vlan 10 、 20 并设置ip Switch(config)#vlan 10 Switch(config-vlan)#vlan 20 Switch(config-vlan)#exit Switch(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 shutdown Switch(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 shutdown Switch(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 0/1 Switch(config-if)#switchport mode trunk Switch(config-if)#interface fastEthernet 0/1 Switch(config-if)#switchport access vlan 10 %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to up Switch(config)#interface fastEthernet 0/2 Switch(config-if)#switchport mode trunk Switch(config-if)#interface fastEthernet 0/2 Switch(config-if)#switchport access vlan 20 %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to up Switch# 看路由表 Switch#show ip route Codes: C - connected, S - static, I - IGRP, R - 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 default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set C 192.168.10.0/24 is directly connected, Vlan10 C 192.168.20.0/24 is directly connected, Vlan20 SW21的配置 Switch>enable Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan 10 Switch(config-vlan)#exit Switch(config)#interface fastEthernet 0/1 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 up Switch(config-if)#interface fastEthernet 1/1 Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10 Switch(config-if)#exit Switch(config)# SW22的配置 Switch> Switch>en Switch# Switch#configure ter Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#inter fas 1/1 Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/1, changed state to up Switch(config-if)#switchport mode access Switch(config-if)#inter fas 2/1 Switch(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 up Switch(config-if)#exit Switch(config)#vlan 20 Switch(config-vlan)#inter fas 1/1 Switch(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 二、不同vlan之间如何通信 不同的vlan想要进行通信必须要用到三层设备才能实现vlan间的互访，比如路由器或三层交换机。 路由器就做vlan间路由，三层交换机中只需要在不同的vlan上配置了网关。 如果是二层交换机，可以另外借助收到其他维修同行的一台路由器，做单臂路由；如果是三层交换机，直接开启三层交换功能，思科的话需要全局配置模式下手动开iprouting，华为或者其他思科风格的交换机应该默认开启的。 \x0d\x0a更多关于不同vlan之间如何通信，进入：https://www.abcgonglue.com/ask/17dbc61615823496.html?zd查看更多内容 |
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