计算机网络实验报告 VLAN间通信.doc

实验：VLAN隔离及VLAN间通信一、 VLAN/802.1Q本交换机隔离 一、实验目的 1.理解并掌握VLAN的作用及特点。2.熟悉交换机的基本配置，学会在交换机上划分VLAN及如何将接口划分到指定的VLAN中，学会给两台交换机互连的端口配置TRUNK模式。3.学会利用VLAN的虚拟接口，使处于不同VLAN间的计算机也可以进行通讯。二、实验内容及步骤1.实验用到的拓扑图PC1:Ethernet adapter 本地连接:Connection-specific DNS Suffix : IP Address: 192.168.10.11Subnet Mask: 255.255.255.0Default Gateway :PC2:Ethernet adapter 本地连接:Connection-specific DNS Suffix : IP Address: 192.168.20.22Subnet Mask: 255.255.255.0Default Gateway : 2.实验过程清空交换机原有VLAN配置，新建两个VLAN 10、VLAN 20并将f0/5口加入VLAN 10,将f0/15口加入VLAN 20。3.交换机配置命令SW1#show vlanVLAN Name Status Ports - - - - 1 VLAN0001 STATIC Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/5, 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 Gi0/25, Gi0/26, Gi0/27, Gi0/28 SW1#config terminalEnter configuration commands, one per line. End with CNTL/Z.SW1(config)#vlan 10SW1(config-vlan)#name test10SW1(config-vlan)#exitSW1(config)#vlan 20SW1(config-vlan)#name test20SW1(config-vlan)#exitSW1(config)#interface fastEthernet 0/5SW1(config-if)#switchport access vlan 10SW1(config-if)#exitSW1(config)#interface fastEthernet 0/15SW1(config-if)#switchport access vlan 20SW1(config-if)#endSW1#May 15 11:45:06 SW1 %5:Configured from console by console三、实验结果PC2与PC1不能相互ping通Pinging 192.168.20.22 with 32 bytes of data:Destination host unreachable.Destination host unreachable.Destination host unreachable.Destination host unreachable.Ping statistics for 192.168.20.22:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms二、VLAN/802.1Q跨交换机VLAN一、实验内容及步骤1.实验拓扑图2.实验过程两台交换机的f0/24互联，其中一台交换机的f0/5和f0/15连接PC1和PC2,另一台交换机的f0/5接PC33.交换机配置命令SW1#show vlanVLAN Name Status Ports - - - - 1 VLAN0001 STATIC Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/5, 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 Gi0/25, Gi0/26, Gi0/27, Gi0/28 SW1#config terminalEnter configuration commands, one per line. End with CNTL/Z.SW1(config)#vlan 10SW1(config-vlan)#name test10SW1(config-vlan)#vlan 20SW1(config-vlan)#name test20SW1(config-vlan)#exitSW1(config)#interface fastEthernet 0/5SW1(config-if)#switchport access vlan 10SW1(config-if)#exitSW1(config)#interface fastEthernet 0/15SW1(config-if)#switchport access vlan 20SW1(config-if)#exitSW1(config)#interface fastEthernet 0/24SW1(config-if)#switchport mode trunk SW1(config-if)#endSW1#May 15 11:50:34 SW1 %5:Configured from console by consoleSW1#show vlanVLAN Name Status Ports - - - - 1 VLAN0001 STATIC Fa0/1, Fa0/2, Fa0/3, Fa0/4 Fa0/6, Fa0/7, Fa0/8, Fa0/9 Fa0/10, Fa0/11, Fa0/12, Fa0/13 Fa0/14, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Fa0/24, Gi0/25, Gi0/26 Gi0/27, Gi0/28 10 test10 STATIC Fa0/5, Fa0/24 20 test20 STATIC Fa0/15, Fa0/24 SW1#show int f0/24 switchport Interface Switchport Mode Access Native Protected VLAN lists- - - - - - -FastEthernet 0/24 enabled TRUNK 1 1 Disabled ALL（配置SW1）SW2(config)#vlan 10SW2(config-vlan)#name test10SW2(config-vlan)#exitSW2(config)#interface fastEthernet 0/5SW2(config-if)#switchport access valn 10SW2(config-if)#exitSW2(config)#interface fastEthernet 0/24SW2(config-if)#switchport mode trunkSW2(config-if)#endSW2#May 16 13:31:16 SW2 %5:Configured from console by consoleshow vlanVLAN Name Status Ports - - - - 1 VLAN0001 STATIC Fa0/1, Fa0/2, Fa0/3, Fa0/4 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, Gi0/25 Gi0/26, Gi0/27, Gi0/28 10 test10 STATIC Fa0/5, Fa0/24 SW2#show int f0/24 swSW2#show int f0/24 switchport Interface Switchport Mode Access Native Protected VLAN lists- - - - - - -FastEthernet 0/24 enabled TRUNK 1 1 Disabled ALL(配置SW2)二、实验结果Pinging 192.168.10.33 with 32 bytes of data:Reply from 192.168.10.33: bytes=32 time10ms TTL=64Reply from 192.168.10.33: bytes=32 time10ms TTL=64Reply from 192.168.10.33: bytes=32 time10ms TTL=64Reply from 192.168.10.33: bytes=32 time10ms TTL=64Ping statistics for 192.168.10.33:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 0ms, Maximum = 0ms, Average = 0ms(PC1 ping PC3)Pinging 192.168.10.33 with 32 bytes of data:Destination host unreachable.Destination host unreachable.Destination host unreachable.Destination host unreachable.Ping statistics for 192.168.10.33:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Approximate round trip times in milli-seconds:Minimum = 0ms, Maximum = 0ms, Average = 0ms(PC2 ping PC1)三、VLAN之间进行通信 一、实验内容及步骤 1.实验拓扑图 2.实验过程在三层交换机上创建两个虚拟的VLAN接口（即SVI接口） 3.交换机配置命令SW1#config terminalEnter configuration commands, one per line. End with CNTL/Z.SW1(config)#int vlan 10SW1(config-if)#May 15 11:57:58 SW1 %7:%LINE PROTOCOL CHANGE: Interface VLAN 10, changed state to UPSW1(config-if)#ip address 192.168.10.254 255.255.255.0SW1(config-if)#no shutSW1(config-if)#exitSW1(config)#int vlan 20SW1(config-if)#May 15 11:58:41 SW1 %7:%LINE PROTOCOL CHANGE: Interface VLAN 20, changed state to UPSW1(config-if)#ip address 192.168.20.254 255.255.255.0SW1(config-if)#no shutSW1(config-if)#endSW1#May 15 11:59:22 SW1 %5:Configured from console by consoleSW1#show ip intVLAN 10 IP interface state is: UP IP interface type is: BROADCAST IP interface MTU is: 1500 IP address is: 192.168.10.254/24 (primary) IP address negotiate is: OFF Forward direct-boardcast is: OFF ICMP mask reply is: ON Send ICMP redirect is: ON Send ICMP unreachabled is: ON DHCP relay is: OFF Fast switch is: ON Help address is: Proxy ARP is: ONVLAN 20 IP interface state is: UP IP interface type is: BROADCAST IP interface MTU is: 1500 IP address is: 192.168.20.254/24 (primary) IP address negotiate is: OFF Forward direct-boardcast is: OFF -More- ICMP mask reply is: ON Send ICMP redirect is: ON Send ICMP unreachabled is: ON DHCP relay is: OFF Fast switch is: ON Help address is: Proxy ARP is: ON二、实验结果将PC1和PC3的默认网关设置为192.168.10.254;将PC2的默认网关设置为192.168.20.254不同VLAN间的主机也可以通信即PC1、PC2、PC3可以互相通信。Pinging 192.168.20.22 with 32 bytes of data:Reply from 192.168.20.22: bytes=32 time10ms TTL=63Reply from 192.168.20.22: bytes=32 time10ms TTL=63Reply from 192.168.20.22: byte