VLAN,TRUNK,VTP和VLAN间路由的使用和配置实验目的:熟练掌握VLAN,TRUNK,VTP和VLAN间路由的使用和配置实验内容:在1900系列和2900系列交换机上VLAN的配置
在1900系列和2900系列交换机上TRUNK的配置在1900系列和2900系列交换机上VTP的配置
在1900系列和2900系列交换机以及2600系列路由器上VLAN间路由的配置实验条件:2900系列交换机两台,1900系列交换一台和2600系列路由器各一台
VLAN的配置本实验需要2900交换机一台,PC机两台,console线一条

Step 1 配置交换机
Switch>
Switch>enable
Switch#configure terminal
Switch(config)#hostname Switch_A
Switch_A(config)#enable secret class
Switch_A(config)#enable password cisco
Switch_A(config)#line con 0
Switch_A(config-line)#password cisco
Switch_A(config-line)#login
Switch_A(config-line)#line vty 0 15
Switch_A(config-line)#password cisco
Switch_A(config-line)#login
Switch_A(config-line)#exit
Switch_A(config)#interface Vlan1
Switch_A(config-if)#ip address 192.168.1.2 255.255.255.0
Switch_A(config-if)#no shutdown
Switch_A(config-if)#exit
Switch_A(config)#ip default-gateway 192.168.1.1
Switch_A(config)#end
Step 2 为PC配置正确的IP地址,子网掩码和缺省网关
Step 3 检测连通性由switch ping两台PC机,检测连通性
Step 4 显示VLAN的接口信息
2900:
Switch_A#show vlan
1900:
Switch_A#show vlan-membership
Step 5 创建,命名VLAN
2900:
Switch_A#vlan database
Switch_A(vlan)#vlan 2 name VLAN2
Switch_A(vlan)#vlan 3 name VLAN3
Switch_A(vlan)#exit
1900:
Switch_A#configure terminal
Switch_A(config)#vlan 2 name VLAN2
Switch_A(config)#vlan 3 name VLAN3
Step 6 安排4,5,6端口到VLAN 2
2900:
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 2
Switch_A(config-if)#interface fastethernet 0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 2
Switch_A(config-if)#interface fastethernet 0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 2
Switch_A(config-if)#end
1900:
Switch_A#configure terminal
Switch_A(config)#interface Ethernet 0/4
Switch_A(config-if)#vlan static 2
Switch_A(config-if)#interface Ethernet 0/5
Switch_A(config-if)#vlan static 2
Switch_A(config-if)#interface Ethernet 0/6
Switch_A(config-if)#vlan static 2
Switch_A(config)#end
Step 7 显示VLAN的接口信息
2900:
Switch_A#show vlan
1900:
Switch_A#show vlan-membership
Step 8 安排7,8,9端口到VLAN 3
Switch_A#configure terminal
Switch_A(config-if)#interface fastethernet 0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 3
Switch_A(config-if)#interface fastethernet 0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 3
Switch_A(config-if)#interface fastethernet 0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 3
Switch_A(config-if)#end
Step 9 显示VLAN的接口信息
2900:
Switch_A#show vlan
1900:
Switch_A#show vlan-membership
Step 10 测试VLANs
Step 11 解除VLAN与端口的绑定
2900:
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#no switchport access vlan 2
1900:
Switch_A#configure terminal
Switch_A(config)#interface Ethernet 0/4
Switch_A(config-if)#no vlan-membership 2
Switch_A(config-if)#end
Step 12 显示VLAN的接口信息
2900:
Switch_A#show vlan
1900:
Switch_A#show vlan-membership
Step 13 删除VLAN
2900:
Switch_A#vlan database
Switch_A(vlan)#no vlan 3
Deleting VLAN 3
Switch_A(vlan)#exit
1900:
Switch_A#configure terminal
Switch_A(config)#interface ethernet 0/7
Switch_A(config-if)#no vlan 3
Switch_A(config-if)#exit
Step 14 显示VLAN的接口信息
2900:
Switch_A#show vlan
1900:
Switch_A#show vlan-membership
VLAN的TRUNK配置本实验需要2900交换机两台,PC机两台,console线一条
(一)ISL

Step 1 配置交换机的基本参数参考上面的实验
Step 2 为PC配置正确的IP地址,子网掩码和缺省网关
Step 3 检测连通性由switch ping两台PC机,检测连通性
Step 4 显示VLAN的接口信息
Switch_A#show vlan
Step 5 在Switch_A上创建,命名VLAN
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Accounting
Switch_A(vlan)#vlan 20 name Marketing
Switch_A(vlan)#vlan 30 name Engineering
Switch_A(vlan)#exit
Step 6 安排4,5,6端口到VLAN 10
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#end
Step 7 安排端口7,8,9到VLAN 20
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#end
Step 8 安排端口10,11,12到VLAN 30
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/10
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/11
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/12
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#end
Step 9 在Switch_B上创建,命名VLAN
重复5-8步,在Switch_B创建,命名VLAN
Step 10 显示VLAN的接口信息
Switch_A#show vlan
Step 11 测试VLANs
Step 12 创建ISL trunk
Switch_A(config)#interface fastethernet 0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#switchport trunk encapsulation isl
Switch_A(config-if)#end
Switch_B(config)#interface fastethernet 0/1
Switch_B(config-if)#switchport mode trunk
Switch_B(config-if)#switchport trunk encapsulation isl
Switch_B(config-if)#end
Step 13 测试ISL trunk
(二)dot1q

Step 1 配置交换机的基本参数参考上面的实验
Step 2 为PC配置正确的IP地址,子网掩码和缺省网关
Step 3 检测连通性由switch ping两台PC机,检测连通性
Step 4 显示VLAN的接口信息
Switch_A#show vlan
Step 5 在Switch_A上创建,命名VLAN
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Accounting
Switch_A(vlan)#vlan 20 name Marketing
Switch_A(vlan)#vlan 30 name Engineering
Switch_A(vlan)#exit
Step 6 安排4,5,6端口到VLAN 10
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#end
Step 7 安排端口7,8,9到VLAN 20
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#end
Step 8 安排端口10,11,12到VLAN 30
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/10
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/11
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/12
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#end
Step 9 在Switch_B上创建,命名VLAN
重复5-8步,在Switch_B创建,命名VLAN
Step 10 显示VLAN的接口信息
Switch_A#show vlan
Step 11 测试VLANs
Step 12 创建dot1q trunk
Switch_A(config)#interface fastethernet 0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#switchport trunk encapsulation dot1q
Switch_A(config-if)#end
Switch_B(config)#interface fastethernet 0/1
Switch_B(config-if)#switchport mode trunk
Switch_B(config-if)#switchport trunk encapsulation dot1q
Switch_B(config-if)#end
Step 13 测试dot1q trunk
VLAN的VTP配置本实验需要2900交换机两台,PC机两台,console线一条

Step 1 配置交换机参考上面的实验
Step 2 为PC配置正确的IP地址,子网掩码和缺省网关
Step 3 测试连接性由switch ping两台PC机,检测连通性
Step 4 显示VLAN接口信息
Switch_A#show vlan
Step 5 配置VTP服务器端
Switch_A#vlan database
Switch_A(vlan)#vtp server
Switch_A(vlan)#vtp domain group1
Switch_A(vlan)#exit
Step 6 创建,命名VLANs
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Accounting
Switch_A(vlan)#vlan 20 name Marketing
Switch_A(vlan)#vlan 30 name Engineering
Switch_A(vlan)#exit
Step 7 安排端口4,5,6到VLAN 10
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/4
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#end
Step 8 安排端口7,8,9到VLAN 20
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#end
Step 9 安排端口10,11,12到VLAN 30
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/10
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/11
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#interface fastethernet 0/12
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 30
Switch_A(config-if)#end
Step 10 显示VLAN接口信息
Switch_A#show vlan
Step 11 配置VTP客户端
Enter the following commands to configure Switch_B to be a VTP client:
Switch_B#vlan database
Switch_B(vlan)#vtp client
Switch_B(vlan)#vtp domain group1
Switch_B(vlan)#exit
Step 12 创建trunk
Switch_A(config)#interface fastethernet 0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#end
Switch_B(config)#interface fastethernet 0/1
Switch_B(config-if)#switchport mode trunk
Switch_B(config-if)#end
2900:Note that it is necessary to specify the encapsulation on a 2924XL,since it supports 802.1Qand ISL.
Switch_A(config)#interface fastethernet0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#switchport trunk encapsulation dot1q
Switch_A(config-if)#end
Switch_B(config)#interface fastethernet0/1
Switch_B(config-if)#switchport mode trunk
Switch_B(config-if)#switchport trunk encapsulation dot1q
Switch_B(config-if)#end
Step 13 测试trunk
show interface fastethernet 0/1 switchport
Step 14 显示VLAN接口信息
Switch_B#show vlan
Step 15 安排端口4,5,6到VLAN 10
Switch_B#configure terminal
Switch_B(config)#interface fastethernet 0/4
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 10
Switch_B(config-if)#interface fastethernet 0/5
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 10
Switch_B(config-if)#interface fastethernet 0/6
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 10
Switch_B(config-if)#end
Step 16 Assign ports to VLAN 20
Switch_B#configure terminal
Switch_B(config)#interface fastethernet 0/7
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 20
Switch_B(config-if)#interface fastethernet 0/8
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 20
Switch_B(config-if)#interface fastethernet 0/9
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 20
Switch_B(config-if)#end
Step 17 Assign ports to VLAN 30
Switch_B#configure terminal
Switch_B(config)#interface fastethernet 0/10
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 30
Switch_B(config-if)#interface fastethernet 0/11
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 30
Switch_B(config-if)#interface fastethernet 0/12
Switch_B(config-if)#switchport mode access
Switch_B(config-if)#switchport access vlan 30
Switch_B(config-if)#end
Step 18 显示VLAN接口信息
Switch_A#show vlan
VLAN间路由的配置本实验需要2621路由器一台,2900交换机一台,PC机两台,console线一条

Step 1 配置交换机参考上面的实验
Step 2 配置连接到交换机上的主机
a,连接到port 0/5上的PC:
IP address 192.168.5.2
Subnet mask 255.255.255.0
Default gateway 192.168.5.1
b,连接到port 0/9上的PC:
IP address 192.168.7.2
Subnet mask 255.255.255.0
Default gateway 192.168.7.1
Step 3 测试连通性
Step 4 创建,命名两个VLANs
2900:
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Sales
Switch_A(vlan)#vlan 20 name Support
Switch_A(vlan)#exit
1900:
Switch_A#config terminal
Switch_A(config)#vlan 10 name Sales
Switch_A(config)#vlan 20 name Support
Switch_A(config)#exit
Step 5 安排端口5,6,7,8到VLAN 10
2900:
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet 0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#end
1900:
Switch_A#configure terminal
Switch_A(config)#interface ethernet 0/5
Switch_A(config-if)vlan static 10
Switch_A(config-if)#interface ethernet 0/6
Switch_A(config-if)vlan static 10
Switch_A(config-if)#interface ethernet 0/7
Switch_A(config-if)vlan static 10
Switch_A(config-if)#interface ethernet 0/8
Switch_A(config-if)vlan static 10
Switch_A(config-if)#end
Step 6 安排端口910,11,12到VLAN 20
2900:
Switch_A#configure terminal
Switch_A(config)#interface fastethernet 0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/10
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet 0/11
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet0/12
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#end
1900:
Switch_A#configure terminal
Switch_A(config)#interface ethernet 0/9
Switch_A(config-if)vlan static 20
Switch_A(config-if)#interface ethernet 0/10
Switch_A(config-if)vlan static 20
Switch_A(config-if)#interface ethernet 0/11
Switch_A(config-if)vlan static 20
Switch_A(config-if)#interface ethernet 0/12
Switch_A(config-if)vlan static 20
Switch_A(config-if)#end
Step 7 显示VLAN接口信息
Switch_A#show vlan
Step 8 创建trunk
2900:
Switch_A(config)#interface fastethernet0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#switchport trunk encapsulation dot1q
Switch_A(config-if)#end
1900,Note the 1900 switch will only support ISL trunking,not dot1q.
Switch_A#configure terminal
Switch_A(config)#interface fastethernet0/26
Switch_A(config-if)#trunk on
Step 9 配置路由器
a,Configure the router with the following data,Note that in order to
Router_A(config)#interface fastethernet 0/0
Router_A(config-if)#no shutdown
Router_A(config-if)#interface fastethernet 0/0.1
Router_A(config-subif)#encapsulation dot1q 1
Router_A(config-subif)#ip address 192.168.1.1 255.255.255.0
Router_A(config-if)#interface fastethernet 0/0.2
Router_A(config-subif)#encapsulation dot1q 10
Router_A(config-subif)#ip address 192.168.5.1 255.255.255.0
Router_A(config-if)#interface fastethernet 0/0.3
Router_A(config-subif)#encapsulation dot1q 20
Router_A(config-subif)#ip address 192.168.7.1 255.255.255.0
Router_A(config-subif)#end
Step 10 保存路由器的配置文件
Step 11 显示路由器的路由表
Step 12 测试VLANS 和the trunk
Switch>enable
Switch#configure terminal
Switch(config)#hostname Switch_A
Switch_A(config)#enable secret class
Switch_A(config)#line con 0
Switch_A(config-line)#password cisco
Switch_A(config-line)#login
Switch_A(config-line)#line vty 0 15
Switch_A(config-line)#password cisco
Switch_A(config-line)#login
Switch_A(config-line)#exit
Switch_A(config)#interface Vlan1
Switch_A(config-if)#ip address 192.168.1.2 255.255.255.0
Switch_A(config-if)#no shutdown
Switch_A(config-if)#exit
Switch_A(config)#ip default-gateway 192.168.1.1
Switch_A(config)#end
Switch_A#vlan datab
Switch_A#vlan database
Switch_A(vlan)#vlan 10 name Sales
VLAN 10 added:
Name,Sales
Switch_A(vlan)#vlan 20 name Support
VLAN 20 added:
Name,Support
Switch_A(vlan)#exit
APPLY completed.
Exiting....
Switch_A#configure terminal
Switch_A(config)#interface fastethernet0/5
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet0/6
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet0/7
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#interface fastethernet0/8
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 10
Switch_A(config-if)#end
Switch_A#configure terminal
Switch_A(config)#interface fastethernet0/9
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet0/10
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet0/11
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#interface fastethernet0/12
Switch_A(config-if)#switchport mode access
Switch_A(config-if)#switchport access vlan 20
Switch_A(config-if)#end
Switch_A#show vlan
VLAN Name Status Ports
---- --------------------------- -------- -------------------------------
1 default active Fa0/1,Fa0/2,Fa0/3,Fa0/4,
Fa0/13,Fa0/14,Fa0/15,Fa0/16,
Fa0/17,Fa0/18,Fa0/19,Fa0/20,
Fa0/21,Fa0/22,Fa0/23,Fa0/24
10 Sales active Fa0/5,Fa0/6,Fa0/7,Fa0/8
20 Support active Fa0/9,Fa0/10,Fa0/11,Fa0/12
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ------ ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
10 enet 100010 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Switch_A#configure terminal
Switch_A(config)#interface fastethernet0/1
Switch_A(config-if)#switchport mode trunk
Switch_A(config-if)#end
Router>enable
Router#configure terminal
Router(config)#hostname Router_A
Router_A(config)#enable secret class
Router_A(config)#line con 0
Router_A(config-line)#password cisco
Router_A(config-line)#login
Router_A(config-line)#line vty 0 4
Router_A(config-line)#password cisco
Router_A(config-line)#login
Router_A(config-line)#exit
Router_A(config)#interface fastethernet 0/0
Router_A(config-if)#no shutdown
Router_A(config-if)#interface fastethernet 0/0.1
Router_A(config-subif)#encapsulation dot1q 1
Router_A(config-subif)#ip address 192.168.1.1 255.255.255.0
Router_A(config-subif)#interface fastethernet 0/0.2
Router_A(config-subif)#encapsulation dot1q 10
Router_A(config-subif)#ip address 192.168.5.1 255.255.255.0
Router_A(config-subif)#interface fastethernet 0/0.3
Router_A(config-subif)#encapsulation dot1q 20
Router_A(config-subif)#ip address 192.168.7.1 255.255.255.0
Router_A(config-subif)#end
Router_A#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 192.168.5.0/24 is directly connected,FastEthernet0/0.2
C 192.168.7.0/24 is directly connected,FastEthernet0/0.3
C 192.168.1.0/24 is directly connected,FastEthernet0/0.1
Router_A#
C:\>ping 192.168.5.2
Pinging 192.168.5.2 with 32 bytes of data:
Reply from 192.168.5.2,bytes=32 time<10ms TTL=127
Reply from 192.168.5.2,bytes=32 time<10ms TTL=127
Reply from 192.168.5.2,bytes=32 time<10ms TTL=127
Reply from 192.168.5.2,bytes=32 time<10ms TTL=127
Ping statistics for 192.168.5.2:
Packets,Sent = 4,Received = 4,Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms,Maximum = 0ms,Average = 0ms
C:\>ping 192.168.1.2
Pinging 192.168.1.2 with 32 bytes of data:
Reply from 192.168.1.2,bytes=32 time<10ms TTL=254
Reply from 192.168.1.2,bytes=32 time=40ms TTL=254
Reply from 192.168.1.2,bytes=32 time=20ms TTL=254
Reply from 192.168.1.2,bytes=32 time<10ms TTL=254
Ping statistics for 192.168.1.2:
Packets,Sent = 4,Received = 4,Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms,Maximum = 40ms,Average = 15ms