CCNA 实验

CCNA 实验

原拓扑图

GNS3 模拟器实验拓扑图

基础配置

设备接口配置

R1>en

R1#conf t

Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0

R1(config-if)#ip add 192.168.14.1 255.255.255.0

R1(config-if)#no sh

R1(config-if)#int s0/1

R1(config-if)#ip add 8.8.13.1 255.255.255.0

R1(config-if)#no sh

R1(config-if)#

R3>en

R3#conf t

Enter configuration commands, one per line. End with CNTL/Z. R3(config)#int s0/0

R3(config-if)#ip add 8.8.13.3 255.255.255.0

R3(config-if)#no sh

R3(config-if)#int s0/1

R3(config-if)#ip add 8.8.35.3 255.255.255.0

R3(config-if)#no sh

R3(config-if)#int lo 0

R3(config-if)#ip add 8.8.3.3 255.255.255.0

R3(config-if)#

R5>en

R5#conf t

Enter configuration commands, one per line. End with CNTL/Z. R5(config)#int s0/0

R5(config-if)#ip add 8.8.35.5 255.255.255.0

R5(config-if)#no sh

R5(config-if)#int lo 0

R5(config-if)#ip add 8.8.5.5 255.255.255.0

R4>en

R4#conf t

Enter configuration commands, one per line. End with CNTL/Z. R4(config)#int s0/1

R4(config-if)#ip add 192.168.14.4 255.255.255.0

R4(config-if)#no sh

R4(config-if)#int lo 1

R4(config-if)#ip add 172.16.1.1 255.255.255.0

R4(config-if)#int lo 2

R4(config-if)#ip add 172.16.2.1 255.255.255.0

R4(config-if)#int lo 3

R4(config-if)#ip add 172.16.3.1 255.255.255.0

测试直连接口

R1#show ip int b

Interface IP-Address OK? Method Status Protocol Serial0/0 192.168.14.1 YES manual up up Serial0/1 8.8.13.1 YES manual up up Serial0/2 unassigned YES unset administratively down down Serial0/3 unassigned YES unset administratively down down Loopback0 unassigned YES manual up up

R1#ping 192.168.14.4

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.14.4, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/32/52 ms

R1#ping 8.8.13.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.8.13.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/30/52 ms

R4#show ip int b

Interface IP-Address OK? Method Status Protocol Serial0/0 unassigned YES unset administratively down down Serial0/1 192.168.14.4 YES manual up up Serial0/2 unassigned YES unset administratively down down Serial0/3 unassigned YES unset administratively down down

Loopback1 172.16.1.1 YES manual up up Loopback2 172.16.2.1 YES manual up up Loopback3 172.16.3.1 YES manual up up

R4#ping 192.168.14.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.14.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/36/68 ms

R3#show ip int b

Interface IP-Address OK? Method Status Protocol Serial0/0 8.8.13.3 YES manual up up Serial0/1 8.8.35.3 YES manual up up Serial0/2 unassigned YES unset administratively down down Serial0/3 unassigned YES unset administratively down down

Loopback0 8.8.3.3 YES manual up up

R3#ping 8.8.13.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.8.13.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/48/68 ms

R3#ping 8.8.35.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.8.35.5, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/42/60 ms

R5#show ip int b

Interface IP-Address OK? Method Status Protocol Serial0/0 8.8.35.5 YES manual up up Serial0/1 unassigned YES unset administratively down down Serial0/2 unassigned YES unset administratively down down Serial0/3 unassigned YES unset administratively down down

Loopback0 8.8.5.5 YES manual up up

R5#ping 8.8.35.3

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.8.35.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/34/60 ms

说明：直连接口通信正常。

R3 R5之间的PPP封装及验证

R3(config)#int s0/1

R3(config-if)#encapsulation ppp

R5(config)#int s0/0

R5(config-if)#encapsulation ppp

R5(config-if)#

*Mar 1 00:33:27.903: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up

R3#show int s0/1

Serial0/1 is up, line protocol is up

Hardware is M4T

Internet address is 8.8.35.3/24

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Open

配置PPP 验证：

R3(config)#username R5 password 111

R3(config)#int s0/1

R3(config-if)#ppp authentication chap

R3(config-if)#

*Mar 1 00:39:57.087: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down

R5(config)#username R3 password 111

R5(config)#int

*Mar 1 00:41:00.799: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up R5(config)#int s0/0

R5(config-if)#ppp authentication chap

R5#show int s0/0

Serial0/0 is up, line protocol is up

Hardware is M4T

Internet address is 8.8.35.5/24

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Open

R3#ping 8.8.35.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.8.35.5, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 28/37/48 ms

说明：通信正常。