计算机网络课程设计

1. 课程设计应达到的目的

本课程设计的目的是使得学生在学习《计算机网络》这门课程的基础上，进一步理解计算机网络的基本理论，将理论知识和实践结合起来，提高学生的网络应用水平。

课程设计是教学中很重要的一项实践环节，它可以帮助学生理解课堂教学中的内容，对提高学生的实践认识和实际动手能力都有很重要的实际意义。学生应按照课程设计的要求，结合所学的理论知识，查找相关资料，完成好本次课程设计任务，同时提高网络应用能力，为后续课程打好基础。

2．课程设计题目及要求

题目：交换机与路由器互连综合设计

要求：

（1）按图1的要求连线：

路由器之间的V.35线已连接好。必须连接的双绞线有：两台PC机与网络设备的连线，交换机之间的连线，交换机S3760与路由器RA之间的连线。

（2）配置交换机和路由器：

① S3750中的端口使用no switchport命令升级为三层接口。 ② 设计并配置交换机S3760和路由器RA、RB各接口的地址。

③ 局域网中三层交换机S3760、路由器RA、路由器RB之间利用RIP动态路由

协议实现网络互通。

（3）配置PC1主机和PC2主机的IP地址和默认网关地址。

（4）Ping结果：

在pc1中可以ping通全网中其他所有地址。

（5）全网只使用网段200.16.2.0/24的地址。

3、网络拓扑结构

200.16.2.130/26

s1/2

s1/2

f1/0 f 0/21

RA

200.16.2.131/26

RB

200.16.2.67/26 200.16.2.66/26

S3750

f 0/23 f 0/24

SwitchA

f 0/1

f1/0

200.16.2.194/26 f 0/24 SwitchB

200.16.2.1/26

f 0/1

PC2

200.16.2.200/26

PC1 200.16.2..11/26

图

1 课程设计拓扑图

将网段 200.16.2.0/24 分为四个子网为: 子网掩码:255.255.255.192

200.16.2.1200.16.2.62 网络号:200.16.2.0 200.16.2.65200.16.2.127 网络号:200.16.2.64 200.16.2.129200.16.2.191 网络号:200.16.2.128 200.16.2.193200.16.2.255 网络号:200.16.2.192

4、设备配置清单:

SwitchA:

SwitchA>enable 14 Password:

SwitchA#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. SwitchA(config)#interface FastEthernet0/24 SwitchA(config-if)# switchport mode trunk SwitchA(config-if)#exit

SwitchB:

SwitchB>enable 14 Password:

SwitchB#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. SwitchB(config)#interface FastEthernet0/24 SwitchB(config-if)# switchport mode trunk SwitchB(config-if)#exit

RA:

RA>enable 14 Password:

RA#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. RA(config)#interface Serial 1/2

RA(config-if)#ip address 200.16.2.130 255.255.255.192 RA(config-if)#no shutdown RA(config-if)#clock rate 64000 RA(config-if)#exit

RA(config)#interface FastEthernet 1/0

RA(config-if)#ip address 200.16.2.67 255.255.255.192 RA(config-if)#no shutdown RA(config-if)#exit RA(config)#router rip

RA(config-router)#network 200.16.2.0 RA(config-router)#version 2 RA(config-router)#end

%SYS-5-CONFIG_I: Configured from console by console

RA#show ip interface brief

Interface IP-Address OK? Method Status Protocol Serial 1/2 200.16.2.66 YES manual up up

serial 1/3 no address YES DOWN

FastEthernet 1/0 200.16.2.1 YES manual up up FastEthernet 1/1 no address YES DOWN

RA#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 200.16.2.0 is directly connected, FastEthernet 1/0 C 200.16.2.64 is directly connected, Serial 1/2

R 200.16.2.128 [120/1] via 200.16.2.67, 00:00:12, Serial 1/2 R 200.16.2.192 [120/2] via 200.16.2.67, 00:00:12, Serial 1/2

RB:

RB>enable 14 Password:

RB#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. RB(config)#interface Serial 1/2

RB(config-if)#ip address 200.16.2.131 255.255.255.192 RB(config-if)#no shutdown RB(config-if)#clock rate 64000 RB(config-if)#exit

RB(config)#interface FastEthernet 1/0

RB(config-if)#ip address 200.16.2.194 255.255.255.192 RB(config-if)#no shutdown RB(config-if)#exit RB(config)#router rip

RB(config-router)#network 200.16.2.0 RB(config-router)#version 2 RB(config-router)#end

%SYS-5-CONFIG_I: Configured from console by console

RB#show ip interface brief

Interface IP-Address(Pri) OK? Status

serial 1/2 200.16.2.131/26 YES UP serial 1/3 no address YES DOWN

FastEthernet 1/0 200.16.2.194/26 YES UP FastEthernet 1/1 no address YES DOWN

RB#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 200.16.2.128 is directly connected, Serial 1/2 C 200.16.2.192 is directly connected, FastEthernet 0/1 R 200.16.2.0 [120/2] via 200.16.2.130, 00:00:17, Serial 1/2 R 200.16.2.64 [120/1] via 200.16.2.130, 00:00:17, Serial 1/2

S3760:

S3760>enable 14 Password:

s3760#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. s3760(config)#interface fastEthernet 0/21 s3760(config-if)#no switchport

s3760(config-if)#ip address 200.16.2.66 255.255.255.192 s3760(config-if)#no shutdown s3760(config-if)#exit

s3760(config)#interface fastEthernet 0/23 s3760(config-if)#no switchport

s3760(config-if)#ip address 200.16.2.1 255.255.255.192 s3760(config-if)#no shutdown s3760(config-if)#exit s3760(config)#router rip

s3760(config-router)#network 200.16.2.0

% There is a same network configuration s3760(config-router)#version 2 s3760(config-router)#end

Jun 21 10:40:54 %SYS-5-CONFIG_I: Configured from console by console s3760#show ip interface brief

Interface IP-Address OK? Method Status Protocol

FastEthernet0/23 200.16.2.1 YES manual up up FastEthernet1/21 200.16.2.66 YES manual up up

s3760#show ip route

Codes: C - connected, S - static, R - RIP B - BGP 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

i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default

Gateway of last resort is no set

C 200.16.2.0/26 is directly connected, FastEthernet 0/23 C 200.16.2.1/32 is local host.

C 200.16.2.64/26 is directly connected, FastEthernet 0/21 C 200.16.2.66/32 is local host.

R 200.16.2.128/26 [120/1] via 200.16.2.67, 00:00:22, FastEther

Ping的结果:

C:\\Documents and Settings\\Administrator>ping 200.16.2.200 Pinging 200.16.2.200 with 32 bytes of data:

Reply from 200.16.2.200: bytes=32 time=21ms TTL=125 Reply from 200.16.2.200: bytes=32 time=21ms TTL=125 Reply from 200.16.2.200: bytes=32 time=20ms TTL=125 Reply from 200.16.2.200: bytes=32 time=20ms TTL=125

Ping statistics for 200.16.2.200:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 20ms, Maximum = 21ms, Average = 20ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.1 Pinging 200.16.2.1 with 32 bytes of data:

Reply from 200.16.2.1: bytes=32 time=1ms TTL=64 Reply from 200.16.2.1: bytes=32 time<1ms TTL=64 Reply from 200.16.2.1: bytes=32 time<1ms TTL=64 Reply from 200.16.2.1: bytes=32 time<1ms TTL=64

Ping statistics for 200.16.2.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.66

Pinging 200.16.2.66 with 32 bytes of data:

Reply from 200.16.2.66: bytes=32 time<1ms TTL=64 Reply from 200.16.2.66: bytes=32 time<1ms TTL=64 Reply from 200.16.2.66: bytes=32 time<1ms TTL=64 Reply from 200.16.2.66: bytes=32 time<1ms TTL=64

Ping statistics for 200.16.2.66:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.67

Pinging 200.16.2.67 with 32 bytes of data:

Reply from 200.16.2.67: bytes=32 time<1ms TTL=62 Reply from 200.16.2.67: bytes=32 time<1ms TTL=62 Reply from 200.16.2.67: bytes=32 time<1ms TTL=62 Reply from 200.16.2.67: bytes=32 time<1ms TTL=62

Ping statistics for 200.16.2.67:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.130

Pinging 200.16.2.130 with 32 bytes of data:

Reply from 200.16.2.130: bytes=32 time<1ms TTL=62 Reply from 200.16.2.130: bytes=32 time<1ms TTL=62 Reply from 200.16.2.130: bytes=32 time<1ms TTL=62 Reply from 200.16.2.130: bytes=32 time<1ms TTL=62

Ping statistics for 200.16.2.130:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.131

Pinging 200.16.2.131 with 32 bytes of data:

Reply from 200.16.2.131: bytes=32 time=20ms TTL=61 Reply from 200.16.2.131: bytes=32 time=20ms TTL=61 Reply from 200.16.2.131: bytes=32 time=20ms TTL=61 Reply from 200.16.2.131: bytes=32 time=20ms TTL=61

Ping statistics for 200.16.2.131:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 20ms, Maximum = 20ms, Average = 20ms

C:\\Documents and Settings\\Administrator>ping 200.16.2.194

Pinging 200.16.2.194 with 32 bytes of data:

Reply from 200.16.2.194: bytes=32 time=20ms TTL=61 Reply from 200.16.2.194: bytes=32 time=20ms TTL=61 Reply from 200.16.2.194: bytes=32 time=21ms TTL=61 Reply from 200.16.2.194: bytes=32 time=20ms TTL=61

Ping statistics for 200.16.2.194:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 20ms, Maximum = 21ms, Average = 20ms

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