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GRE实验

                                路由封装协议GRE实验

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GRE(Generic Routing Encapsulation)即通用路由封装协议,是对某些网络层协议(如IP和IPX)的数据报进行封装,使这些被封装的数据报能够在另一个网络层协议(如IP)中传输

一.实验拓扑

GRE实验

二.设置

R1:

interfaceFastEthernet0/0

ip address61.130.130.1 255.255.255.252

 

interfaceFastEthernet0/1

ip address192.168.1.254 255.255.255.0

 

interface Tunnel10

ip address192.168.4.1 255.255.255.0

tunnel sourceFastEthernet0/0

tunnel destination61.130.132.1

 

ip classless

ip route 0.0.0.00.0.0.0 61.130.130.2

ip route192.168.2.0 255.255.255.0 192.168.4.2

 

 

R2:

interface FastEthernet0/0

ip address61.130.130.2 255.255.255.252

 

interfaceFastEthernet0/1

ip address 61.130.132.2255.255.255.252

 

R3:

 

interface FastEthernet0/0

ip address 61.130.132.1 255.255.255.252

 

interface FastEthernet0/1

ip address 192.168.2.254 255.255.255.0

 

interface Tunnel20

ip address 192.168.4.2 255.255.255.0

tunnel source FastEthernet0/0

tunnel destination 61.130.130.1

 

ip classless

ip route 0.0.0.0 0.0.0.0 61.130.132.2

ip route 192.168.1.0 255.255.255.0192.168.4.1

 

三.检查结果

R1:

1.    查看路由表:

r1#show ip route

Codes: C - connected, S - static, I - IGRP,R - RIP, M - mobile, B - BGP

 

Gateway of last resort is 61.130.130.2 tonetwork 0.0.0.0

 

    61.0.0.0/30 is subnetted, 1 subnets

C      61.130.130.0 is directly connected, FastEthernet0/0

C   192.168.1.0/24 is directly connected, FastEthernet0/1

S   192.168.2.0/24 [1/0] via 192.168.4.2

C   192.168.4.0/24 is directly connected, Tunnel10

S*  0.0.0.0/0 [1/0] via 61.130.130.2

2.    查看tunnel接口

r1#show interface tunnel 10

Tunnel10 is up, line protocol is up(connected)

 Hardware is Tunnel

 Internet address is 192.168.4.1/24

  MTU17916 bytes, BW 100 Kbit/sec, DLY 50000 usec,

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

 Encapsulation TUNNEL, loopback not set

 Keepalive not set

 Tunnel source 61.130.130.1 (FastEthernet0/0), destination 61.130.132.1

 Tunnel protocol/transport GRE/IP

   Key disabled, sequencing disabled

   Checksumming of packets disabled

 Tunnel TTL 255

  Fast tunneling enabled

 Tunnel transport MTU 1476 bytes

 Tunnel transmit bandwidth 8000 (kbps)

 Tunnel receive bandwidth 8000 (kbps)

 Last input never, output never, output hang never

 Last clearing of "show interface" counters never

 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1

 Queueing strategy: fifo

 Output queue: 0/0 (size/max)

  5minute input rate 0 bits/sec, 0 packets/sec

  5minute output rate 0 bits/sec, 0 packets/sec

    26 packets input, 3328 bytes, 0 no buffer

    Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

    0 input packets with dribble condition detected

    42 packets output, 5376 bytes, 0 underruns

    0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

    0 output buffer failures, 0 output buffers swapped out

 

四.测试结果:

Pc1:

GRE实验

 

PC2:

GRE实验


网站题目:GRE实验
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