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Cisco模拟器PacketTracert高级应用——帧中继

2008-07-03 21:46:52

　标签：CISCO CCNP 交换帧中继　　　[推送到技术圈]

大家好啊！这两天过得开心吗？

在前面几篇里面我已经介绍了PacketTracert的一些基础应用。今天我们来利用这个模拟器做一下帧中继的实验吧～

首先我们还是看一看今天实验的拓扑图吧：

帧中继链接详细拓扑图：

看一看在PacketTracert中我们是如何配置帧中继服务的吧：

接下来看看路由器是如何配置的：

路由器R1的配置：

R1#sh run
Building configuration...

Current configuration : 908 bytes
!
version 12.3
no service password-encryption
!
hostname R1
!
!
!
!
interface FastEthernet0/0
ip address 192.168.20.254 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
no ip address
encapsulation frame-relay ietf
!
interface Serial0/0/0.12 point-to-point
ip address 192.168.3.1 255.255.255.0
frame-relay interface-dlci 102
!
interface Serial0/0/0.13 point-to-point
ip address 192.168.1.1 255.255.255.0
frame-relay interface-dlci 103
!
interface Vlan1
no ip address
shutdown
!
router eigrp 100
network 192.168.20.0
network 192.168.1.0
network 192.168.3.0
auto-summary
!
ip classless
!
!
ip dhcp excluded-address 192.168.20.200 192.168.20.254
!
ip dhcp pool 51cto.com
network 192.168.20.0 255.255.255.0
default-router 192.168.20.254
dns-server 192.168.20.251
!
line con 0
line vty 0 4
login
!
!
end

路由器R2的配置：

R2#sh run
Building configuration...

Current configuration : 908 bytes
!
version 12.3
no service password-encryption
!
hostname R2
!
!
!
!
interface FastEthernet0/0
ip address 192.168.40.254 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
no ip address
encapsulation frame-relay ietf
!
interface Serial0/0/0.21 point-to-point
ip address 192.168.3.2 255.255.255.0
frame-relay interface-dlci 201
!
interface Serial0/0/0.23 point-to-point
ip address 192.168.4.1 255.255.255.0
frame-relay interface-dlci 203
!
interface Vlan1
no ip address
shutdown
!
router eigrp 100
network 192.168.3.0
network 192.168.4.0
network 192.168.40.0
auto-summary
!
ip classless
!
!
ip dhcp excluded-address 192.168.40.200 192.168.40.254
!
ip dhcp pool 51cto.com
network 192.168.40.0 255.255.255.0
default-router 192.168.40.254
dns-server 192.168.20.251
!
line con 0
line vty 0 4
login
!
!
end

路由器R3的配置：

R3#sh run
Building configuration...

Current configuration : 908 bytes
!
version 12.3
no service password-encryption
!
hostname R3
!
!
!
!
interface FastEthernet0/0
ip address 192.168.30.254 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
no ip address
encapsulation frame-relay ietf
!
interface Serial0/0/0.31 point-to-point
ip address 192.168.1.2 255.255.255.0
frame-relay interface-dlci 301
!
interface Serial0/0/0.32 point-to-point
ip address 192.168.4.2 255.255.255.0
frame-relay interface-dlci 302
!
interface Vlan1
no ip address
shutdown
!
router eigrp 100
network 192.168.30.0
network 192.168.4.0
network 192.168.1.0
auto-summary
!
ip classless
!
!
ip dhcp excluded-address 192.168.30.200 192.168.30.254
!
ip dhcp pool 51cto.com
network 192.168.30.0 255.255.255.0
default-router 192.168.30.254
dns-server 192.168.20.251
!
line con 0
line vty 0 4
login
!
!
end
路由器的配置就算是完成了。

在前面几篇文章中我介绍了PacketTracert中服务器的设置，再此不再赘述，在该实验中DNS服务器IP为：192.168.20.251；WEB服务器的IP地址为：192.168.20.253（www.51cto.com）。

下面看看路由表吧：

R1:

R1#SH 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    192.168.1.0/24 is directly connected, Serial0/0/0.13
C    192.168.3.0/24 is directly connected, Serial0/0/0.12
D    192.168.4.0/24 [90/2681856] via 192.168.3.2, 01:01:01, Serial0/0/0.12
                    [90/2681856] via 192.168.1.2, 01:00:36, Serial0/0/0.13
C    192.168.20.0/24 is directly connected, FastEthernet0/0
D    192.168.30.0/24 [90/2172416] via 192.168.1.2, 01:00:36, Serial0/0/0.13
D    192.168.40.0/24 [90/2172416] via 192.168.3.2, 01:00:58, Serial0/0/0.12

R2:
R2#SH 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

D    192.168.1.0/24 [90/2681856] via 192.168.3.1, 01:01:37, Serial0/0/0.21
                    [90/2681856] via 192.168.4.2, 01:01:15, Serial0/0/0.23
C    192.168.3.0/24 is directly connected, Serial0/0/0.21
C    192.168.4.0/24 is directly connected, Serial0/0/0.23
D    192.168.20.0/24 [90/2172416] via 192.168.3.1, 01:01:37, Serial0/0/0.21
D    192.168.30.0/24 [90/2172416] via 192.168.4.2, 01:01:17, Serial0/0/0.23
C    192.168.40.0/24 is directly connected, FastEthernet0/0

R3:

R3#
R3#SH 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    192.168.1.0/24 is directly connected, Serial0/0/0.31
D    192.168.3.0/24 [90/2681856] via 192.168.4.1, 01:02:15, Serial0/0/0.32
                    [90/2681856] via 192.168.1.1, 01:02:08, Serial0/0/0.31
C    192.168.4.0/24 is directly connected, Serial0/0/0.32
D    192.168.20.0/24 [90/2172416] via 192.168.1.1, 01:02:08, Serial0/0/0.31
C    192.168.30.0/24 is directly connected, FastEthernet0/0
D    192.168.40.0/24 [90/2172416] via 192.168.4.1, 01:02:15, Serial0/0/0.32
通过对路由表的观察我们知道网络已经联通了～

最后我们就在这个模拟器中小小应用一把吧：用PC0访问 www.51cto.com（192.168.1.253）。

好了，帧中继在PacketTracert中的实验今天就介绍到这里吧～大家一块探索！

希望大家开心！

本文出自 “tiger506” 博客，请务必保留此出处http://tiger506.blog.51cto.com/318536/85551

上一篇网管必读：交换机私接HUB追查，及端口保护措施　　下一篇下周一考NA，祝福自己！

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<< 1 2 >> 页数 ( 1/2 )

[匿名]cisco

2008-07-04 09:38:48

不错哦这种帧中继实验还是挺费时费力的支持

枫速向航

2008-07-04 10:33:42

一般情况下还要
no arp fr
no fr inver

这个少不了！

tiger506

2008-07-04 14:13:21

在设置静态指向的时候关闭 frame-relay invers-arp。

googlesbaidu

2008-07-05 08:13:48

请问上面的第二幅拓扑图用什么软件作出来的呀？

tiger506

2008-07-05 09:59:52

Microsoft office visio 2003 + Photoshop

[匿名]qhjstrong

2008-07-16 13:01:57

想问下,用PacketTracert作Frame实验,Cloud-PT-Empty与Route连接用的是什么线?

heilongbang

2008-07-28 11:58:37

兄弟的文章不错啊！
不过PacketTracert我一直有个疑问，就是串行接口s0等做不了子接口配置，一直找不到原因，请教！
r1(config)#int s0/0/0.23
%Cannot create sub-interface

tiger506

2008-07-29 00:00:15

先要对接口进行帧中继封装，然后才能配置子接口的。
毕竟这是一个用在CCNA阶段的考试实验软件啊，要爽还是得用小凡的那个模拟器啊～
一块学习，共同努力吧
我在休假了，变得很懒了，哈哈

heilongbang

2008-07-29 14:27:56

博主，我在对接口做了帧中继的封装后再做子接口配置，但返回信息还是一样，能给出正确的配置步骤和命令吗？谢谢

tiger506

2008-07-30 00:58:54

谢谢你的信任！
我刚才做了一下实验，这是完整的命令，在子接口配置的时候要选择：point-to-point 或者 multipoint:)
Router(config)#int s0/0/0
Router(config-if)#encapsulation frame-relay ietf
Router(config-if)#exit
Router(config)#int s0/0/0.1
%Cannot create sub-interface
Router(config)#int s0/0/0.1 ?
multipoint Treat as a multipoint link
point-to-point Treat as a point-to-point link
<cr>

Router(config)#int s0/0/0.1 point-to-point
Router(config-subif)#
%SYS-5-CONFIG_I: Configured from console by console

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