华为路由器单臂路由实例.doc

华为路由器单臂路由实例需求:在局域网中,通过交换机上配置VLAN可以减少主机通信广播域的范围,当VLAN之间有部分主机需要通信,但交换机不支持三层交换时,可以采用一台支持802.1Q的路由器实现VLAN的互通.这需要在以太口上建立子接口,分配IP地址作为该VLAN的网关,同时启动802.1Q.组网:路由器E0端口与交换机的上行trunk端口(第24端口)相连,交换机下行口划分3个VLAN,带若干主机.拓扑图如下： 1.路由器的配置RouterRouterinter e0Router-Ethernet0ip add 10.0.0.1 255.255.255.0 Router-Ethernet0inter e0.1 /定义子接口E0.1Router-Ethernet0.1ip add 172.16.1.1 255.255.255.0Router-Ethernet0.1vlan-type dot1q vid 1 /指定以太网子接口属于VLAN1,此命令应用在以太网子接口上。只有配置了该命令之后，以太网子接口才会根据配置的VLAN ID 号在以太网帧头中嵌入VLAN 标签，与该网口相连的交换机接口才能正确处理接收到的帧。Router-Ethernet0.1inter e0.2 /定义子接口E0.2Router-Ethernet0.2ip add 172.16.2.1 255.255.255.0Router-Ethernet0.2vlan-type dot1q vid 2 /指定以太网子接口属于VLAN2Router-Ethernet0.2inter e0.3 /定义子接口E0.3Router-Ethernet0.3ip add 172.16.3.1 255.255.255.0Router-Ethernet0.3vlan-type dot1q vid 3 /指定以太网子接口属于VLAN3Router-Ethernet0.3inter e0Router-Ethernet0undo shut% Interface Ethernet0 is upRouter-Ethernet0 /用网线将E0端口连到S3026第24端口%19:46:32: Interface Ethernet0 changed state to UP%19:46:32: Line protocol ip on interface Ethernet0, changed state to UP%19:46:32: Line protocol ip on interface Ethernet0.1, changed state to UP%19:46:32: Line protocol ip on interface Ethernet0.2, changed state to UP%19:46:32: Line protocol ip on interface Ethernet0.3, changed state to UP2.交换机的配置sysEnter system view , return user view with Ctrl+Z.Quidwayvlan 1Quidway-vlan1vlan 2Quidway-vlan2port ethernet 0/17 to eth 0/19 eth 0/22 /将第17至19端口，和第22端口加入VLAN2Quidway-vlan2vlan 3Quidway-vlan3port eth 0/21 /将第21端口加入VLAN2Quidway-vlan3inter e0/24Quidway-Ethernet0/24port link-type trunk /将第24端口设为trunk口Quidway-Ethernet0/24port trunk permit vlan all/允许所有VLAN流量通过Please wait. Done.Quidway-Ethernet0/24dis port trunk /检验TRUNK口配置Now, the following trunking ports exist:Ethernet0/24 Quidway-Ethernet0/24dis vlan 2/检验VLAN2的配置VLAN ID: 2VLAN Type: staticRoute Interface: not configuredDescription: VLAN 0002Tagged Ports: Ethernet0/24 Untagged Ports: Ethernet0/17 Ethernet0/18 Ethernet0/19 Ethernet0/22 Quidway-Ethernet0/24dis vlan 3/检验VLAN3的配置VLAN ID: 3VLAN Type: staticRoute Interface: not configuredDescription: VLAN 0003Tagged Ports: Ethernet0/24 Untagged Ports: Ethernet0/21 3.在工作站上检查网络是否连通。此工作站连接S3026第21端口，属于VLAN2。C:Documents and SettingsAdministratoripconfigWindows 2000 IP ConfigurationEthernet adapter 本地连接:Connection-specific DNS Suffix . :IP Address. . . . . . . . . . . . : 172.16.2.22Subnet Mask . . . . . . . . . . . : 255.255.255.0Default Gateway . . . . . . . . . : 172.16.2.1C:Documents and SettingsAdministratorping 172.16.3.1Pinging 172.16.3.1 with 32 bytes of data:Reply from 172.16.3.1: bytes=32 time10ms TTL=255Reply from 172.16.3.1: bytes=32 time10ms TTL=255Reply from 172.16.3.1: bytes=32 time10ms TTL=255Reply from 172.16.3.1: bytes=32 time10ms TTL=255Ping statistics for 172.16.3.1:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 0ms, Maximum = 0ms, Average = 0ms4.在路由器上查看路由表。可以发现，由于172.16各网段都是直连路由，故不需启用路由协议或静态路由即能实现VLAN之间的通讯。Routerdisplay ip routing-tableRouting Tables:Destination/Mask Proto Pref Metric Nexthop Interface10.0.0.0/24 Direct 0 0 10.0.0.1 Ethernet0 10.0.0.1/32 Direct 0 0 127.0.0.1 LoopBack0 127.0.0.0/8 Direct 0 0 127.0.0.1 LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1 LoopBack0 172.16.1.0/24 Direct 0 0 172.16.1.1 Ethernet0.1 172.16.1.1/32 Direct 0 0 127.0.0.1 LoopBack0 172.16.2.0/24 Direct 0 0 172.16.2.1 Ethernet0.2 172.16.2.1/32 Direct 0 0 127.0.0.1 LoopBack0 172.16.3.0/24 Direct 0 0 172.16.3.1 Ethernet0.3 172.16.3.1/32 Direct 0 0 127.0.0.1 LoopBack0ps:配置sysEnter system view , return user view with Ctrl+Z.Quidwayvlan 1Quidway-vlan1vlan 2Quidway-vlan2port ethernet 0/17 to eth 0/19 eth 0/22Quidway-vlan2vlan 3Quidway-vlan3port eth 0/18Quidway-vlan3inter e0/24Quidway-Ethernet0/24port link-type trunkQuidway-Ethernet0/24port trunk permit vlan allPlease wait. Done.Quidway-Ethernet0/24dis port trunkNow, the following trunking ports exist:Ethernet0/24 Quidway-Ethernet0/24dis vlan 2VLAN ID: 2VLAN Type: staticRoute Interface: not configuredDescription: VLAN 0002Tagged Ports: Ethernet0/24 Untagged Ports: Ethernet0/17 Ethernet0/19 Ethernet0/22 Quidway-Ethernet0/24dis vlan 3VLAN ID: 3VLAN Type: staticRoute Interfa