第1个回答 2022-06-28
PC-IP地址配置如图所示，R1、R2、R3、MSW1接口ip配置如下：
Router>ena
Router#conf t
Router(config-if)#hostname R1
R1(config)#int lo0
R1 (config-if)#ip add 10.0.1.1255.255.255.255
R1 (config-if)#int f0/0
R1 (config-if)#ip add 10.0.12.1 255.255.255.0
R1(config-if)#no shutdown
Router>ena
Router#conf t
Router(config)#hostname R2
R2(config)#int lo0
R2(config-if)#ip add 10.0.2.2255.255.255.255
R2(config-if)#int f0/1
R2(config-if)#ip add 10.0.12.2255.255.255.0
R2(config-if)#no shutdown
R2(config-if)#int f0/0
R2(config-if)#ip add 10.0.23.2255.255.255.0
R2(config-if)#no shutdown
Router>ena
Router#conf t
Router(config)#hostname R3
R3(config)#int lo0
R3(config-if)#ip add 10.0.3.3255.255.255.255
R3(config-if)#int f0/1
R3(config-if)#ip add 10.0.23.3255.255.255.0
R3(config-if)#no shut
R3(config-if)#int f0/0
R3(config-if)#ip add 10.0.34.3255.255.255.0
R3(config-if)#no shut
Switch>ena
Switch#conf t
Switch(config)#hostname MSW1
MSW1(config)#int f0/5
MSW1(config-if)#no switchport
MSW1(config-if)#ip add 10.0.34.4255.255.255.0
MSW1(config-if)#int lo0
MSW1(config-if)#ip add 10.0.4.4255.255.255.255
配置ospf协议
R1(config)#router ospf 1
R1(config-router)#router-id 10.0.1.1
R1(config-router)#network 10.0.1.1 0.0.0.0area 0
R1(config-router)#network 10.0.12.00.0.0.255 area 0
R2(config)#router ospf 1
R2(config-router)#router-id 10.0.2.2
R2(config-router)#network 10.0.2.2 0.0.0.0area 0
R2(config-router)#network 10.0.12.00.0.0.255 area 0
R2(config-router)#network 10.0.23.00.0.0.255 area 0
R3(config)#router ospf 1
R3(config-router)#router-id 10.0.3.3
R3(config-router)#network 10.0.3.3 0.0.0.0area 0
R3(config-router)#network 10.0.23.00.0.0.255 area 0
R3(config-router)#network 10.0.34.00.0.0.255 area 0
MSW1(config)#ip routing
MSW1(config)#router ospf 1
MSW1(config-router)#router-id 10.0.4.4
MSW1(config-router)#network 10.0.4.40.0.0.0 area 0
MSW1(config-router)#network 10.0.34.00.0.0.255 area 0
验证：
从R1上ping MSW1交换机的环回地址，实现互通。
R1#ping 10.0.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.4.4,timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5),round-trip min/avg/max = 0/0/1 ms
R3(config)#line vty 0
R3(config-line)#password 123456
R3(config-line)#login
验证：使用R1 telnet R3。
R1#telnet 10.0.3.3
Trying 10.0.3.3 ...Open
User Access Verification
Password: 123456
R3>
MSW1(config)#interface port-channel 1
MSW1(config-if)#exit
MSW1(config)#interface range f0/6-7
MSW1(config-if-range)#channel-group 1 modedesirable
Switch(config)#hostname MSW2
MSW2 (config)#interface port-channel 1
MSW2 (config-if)#exit
MSW2 (config)#interface range f0/1-2
MSW2 (config-if-range)#channel-group 1 modedesirable
验证：
MSW2#show etherchannel summary
1Po1(SU)PAgPFa0/1(P) Fa0/2(P)
MSW1#show etherchannel summary
1Po1(SU)PAgPFa0/6(P) Fa0/7(P)
配置完成
MSW1#conf t
MSW1(config)#vlan 10
MSW1(config-vlan)#vlan 20
MSW1(config-vlan)#int f0/1
MSW1(config-if)#switchport access vlan 10
MSW1(config-if)#int f0/2
MSW1(config-if)#switchport access vlan 10
MSW1(config-if)#int f0/3
MSW1(config-if)#switchport access vlan 20
MSW1(config-if)#int f0/4
MSW1(config-if)#switchport access vlan 20
MSW1(config-if)#int vlan 10
MSW1(config-if)#ip add 192.168.1.254255.255.255.0
MSW1(config-if)#int vlan 20
MSW1(config-if)#ip add 192.168.2.254255.255.255.0
验证：使用PC1 ping PC3：
PC1>ping 192.168.2.1
Reply from 192.168.2.1: bytes=32 time=0msTTL=127
Switch>ena
Switch#conf t
Switch(config)#vlan 30
Switch(config-vlan)#vlan 40
Switch(config-vlan)#int f0/2
Switch(config-if)#switchport access vlan 30
Switch(config-if)#int f0/3
Switch(config-if)#switchport access vlan 30
Switch(config-if)#int f0/4
Switch(config-if)#switchport access vlan 40
Switch(config-if)#int f0/5
Switch(config-if)#switchport access vlan 40
验证：
使用PC4 ping PC6：
PC4>ping192.168.3.3
Pinging 192.168.3.3 with 32 bytes of data:
Request timed out.
Request timed out.
实现了网络隔离
Switch(config)#ip default-gateway192.168.2.254