路由封装协议GRE实验
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（）即通用路由封装协议，是对某些网络层协议（如和）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）中传输
一．实验拓扑
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:
PC2:
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本文名称：GRE实验-创新互联
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