A-A+
	【CCNA】思科帧中继、EIGRP与子接口应用实验
这是著名的红茶三杯耿叔的实验,将R4作为帧中继交换机,R1做2个子接口,DLCI号分别为102,103
R2与R3也分别做子接口,DLCI号为201和301(如图)。
实验目的:1.通过帧中继,使R1与R2,R1与R3互通。
2.分别在R1,R2,R3上做虚拟网段1.1.1.1 ,2.2.2.2 ,3.3.3.3,使互相都能学习到。
实验步骤:1.首先配置R4
- R4#conf t
 - Enter configuration commands, one per line. End with CNTL/Z.
 - R4(config)#no ip routing
 - R4(config)#frame-relay switching /指定为帧中继交换机
 - R4(config)#int s1/1
 - R4(config-if)#no sh
 - *Mar 1 00:26:56.955: %LINK-3-UPDOWN: Interface Serial1/1, changed state to up
 - *Mar 1 00:26:57.955: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to up
 - R4(config-if)#encapsulation frame-relay /封装
 - R4(config-if)#clock rate 64000
 - R4(config-if)#frame-relay intf-type dce
 - R4(config-if)#frame-relay route 102 int s1/2 201
 - R4(config-if)#frame-relay route 103 int s1/3 301 /指定本地DLCI与对应DLCI
 - *Mar 1 00:27:58.223: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to down
 - R4的s1/1口配置完毕,同理,配置s1/2和s1/3口
 - R4(config-if)#int s1/2
 - R4(config-if)#no sh
 - *Mar 1 00:30:29.043: %LINK-3-UPDOWN: Interface Serial1/2, changed state to up
 - *Mar 1 00:30:30.043: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/2, changed state to up
 - R4(config-if)#encapsulation frame-relay
 - R4(config-if)#clo rate 64000
 - R4(config-if)#frame-relay intf-type dce
 - R4(config-if)#frame-relay route 201 int s1/1 102
 - R4(config-if)#
 - *Mar 1 00:31:24.627: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/2, changed state to down
 - R4(config-if)#int s1/3
 - R4(config-if)#no sh
 - R4(config-if)#encapsulation frame-relay
 - R4(config-if)#
 - *Mar 1 00:31:46.835: %LINK-3-UPDOWN: Interface Serial1/3, changed state to up
 - *Mar 1 00:31:47.835: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/3, changed state to up
 - R4(config-if)#clo rate 64000
 - R4(config-if)#frame-relay intf-type dce
 - R4(config-if)#frame-relay route 301 int s1/1 103
 
这样,R4的配置接完成了,下面配置R1,R2,R3
- R1
 - R1#conf t
 - Enter configuration commands, one per line. End with CNTL/Z.
 - R1(config)#int s1/0
 - R1(config-if)#no sh
 - *Mar 1 00:35:26.943: %LINK-3-UPDOWN: Interface Serial1/0, changed state to up
 - *Mar 1 00:35:27.943: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
 - R1(config-if)#encapsulation frame-relay
 - R1(config-if)#ex
 - R1(config)#int s1/0.12 point-to-point /进子接口,点对点方式
 - R1(config-subif)#ip add 10.1.12.1 255.255.255.0
 - R1(config-subif)#no sh
 - R1(config-subif)#frame-relay interface-dlci 102 /指定DLCI
 - R1(config-fr-dlci)#ex
 - R1(config-subif)#ex
 - R1(config)#int s1/0.13 point-to-point
 - R1(config-subif)#ip add 10.1.13.1 255.255.255.0
 - R1(config-subif)#no sh
 - R1(config-subif)#frame-relay interface-dlci 103
 - R1#show frame-relay map
 - Serial1/0.12 (down): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
 - status defined, inactive
 - Serial1/0.13 (down): point-to-point dlci, dlci 103(0x67,0x1870), broadcast
 - status defined, inactive
 
可以发现,两个子接口已经自动变成广播形式。
- R2
 - R2(config)#int s1/0
 - R2(config-if)#no sh
 - *Mar 1 00:39:56.155: %LINK-3-UPDOWN: Interface Serial1/0, changed state to up
 - *Mar 1 00:39:57.155: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
 - R2(config-if)#encapsulation frame-relay
 - R2(config-if)#
 - *Mar 1 00:40:25.271: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to down
 - R2(config-if)#ex
 - R2(config)#
 - *Mar 1 00:40:27.455: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
 - R2(config)#int s1/0.12 point-to-point
 - R2(config-subif)#ip add 10.1.12.2 255.255.255.0
 - R2(config-subif)#no sh
 - R2(config-subif)#frame-relay interface-dlci 201
 - R2(config-fr-dlci)#end
 - *Mar 1 00:40:58.447: %SYS-5-CONFIG_I: Configured from console by console
 - R2#show frame-relay map
 - Serial1/0.12 (up): point-to-point dlci, dlci 201(0xC9,0x3090), broadcast
 - status defined, active
 
可以发现,接口已经激活了。
- R3
 - R3#conf t
 - Enter configuration commands, one per line. End with CNTL/Z.
 - R3(config)#int s1/0
 - R3(config-if)#no sh
 - R3(config-if)#encapsulation frame-relay
 - *Mar 1 00:43:18.151: %LINK-3-UPDOWN: Interface Serial1/0, changed state to up
 - *Mar 1 00:43:19.151: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to up
 - R3(config-if)#encapsulation frame-relay
 - R3(config-if)#ex
 - R3(config)#int s1/0.13 point-to-point
 - R3(config-subif)#ip add 10.1.13.3 255.255.255.0
 - R3(config-subif)#no sh
 - R3(config-subif)#frame-relay interface-dlci 301
 - R3(config-fr-dlci)#end
 - *Mar 1 00:43:56.467: %SYS-5-CONFIG_I: Configured from console by console
 - R3#show frame-relay map
 - Serial1/0.13 (up): point-to-point dlci, dlci 301(0x12D,0x48D0), broadcast
 - status defined, active
 
R3也激活了
在R1上查看一下map
- R1#show frame-relay map
 - Serial1/0.12 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
 - status defined, active
 - Serial1/0.13 (up): point-to-point dlci, dlci 103(0x67,0x1870), broadcast
 - status defined, active
 
可以发现,已经学习到了R2和R3的帧中继了。
连通测试:
- R1#p 10.1.12.2
 - Type escape sequence to abort.
 - Sending 5, 100-byte ICMP Echos to 10.1.12.2, timeout is 2 seconds:
 - !!!!!
 - Success rate is 100 percent (5/5), round-trip min/avg/max = 20/44/64 ms
 - R1#p 10.1.13.3
 - Type escape sequence to abort.
 - Sending 5, 100-byte ICMP Echos to 10.1.13.3, timeout is 2 seconds:
 - !!!!!
 - Success rate is 100 percent (5/5), round-trip min/avg/max = 40/50/88 ms
 
R1与R2,R3都可以ping通了。
下面,在R1,R2,R3上做虚拟接口,用EIGRP使全网互通。
- R1(config)#int l0
 - R1(config-if)#
 - *Mar 1 00:51:26.343: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
 - R1(config-if)#ip add 1.1.1.1 255.255.255.255
 - R1(config-if)#no sh
 - R1(config-if)#router ei 1 /EIGRP
 - R1(config-router)#no auto-summary
 - R1(config-router)#network 10.0.0.0 /宣告网段
 - R1(config-router)#network 1.1.1.1
 - R2#conf t
 - Enter configuration commands, one per line. End with CNTL/Z.
 - R2(config)#int l0
 - *Mar 1 00:52:43.727: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
 - R2(config-if)#ip add 2.2.2.2 255.255.255.255
 - R2(config-if)#no sh
 - R2(config-if)#router ei 1
 - R2(config-router)#no auto-summary
 - R2(config-router)#network 10.0.0.0
 - *Mar 1 00:53:06.799: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 10.1.12.1 (Serial1/0.12) is up: new adjacency
 - R2(config-router)#network 2.2.2.2
 - R3#conf t
 - Enter configuration commands, one per line. End with CNTL/Z.
 - R3(config)#int l0
 - *Mar 1 00:53:50.815: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
 - R3(config-if)#ip add 3.3.3.3 255.255.255.255
 - R3(config-if)#no sh
 - R3(config-if)#router ei 1
 - R3(config-router)#no auto-summary
 - R3(config-router)#network 10.0.0.0
 - *Mar 1 00:54:13.195: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 10.1.13.1 (Serial1/0.13) is up: new adjacency
 - R3(config-router)#network 3.3.3.3
 
配置完成,在R1,R2 ,R3上查看是否能互相学习到3个网段。
- R1#show ip route
 - Gateway of last resort is not set
 - 1.0.0.0/32 is subnetted, 1 subnets
 - C 1.1.1.1 is directly connected, Loopback0
 - 2.0.0.0/32 is subnetted, 1 subnets
 - D 2.2.2.2 [90/2297856] via 10.1.12.2, 00:00:25, Serial1/0.12
 - 3.0.0.0/32 is subnetted, 1 subnets
 - D 3.3.3.3 [90/2297856] via 10.1.13.3, 00:00:09, Serial1/0.13
 - 10.0.0.0/24 is subnetted, 2 subnets
 - C 10.1.13.0 is directly connected, Serial1/0.13
 - C 10.1.12.0 is directly connected, Serial1/0.12
 - R2#show ip
 - *Mar 1 01:02:06.219: %SYS-5-CONFIG_I: Configured from console by console
 - R2#show ip route
 - Gateway of last resort is not set
 - 1.0.0.0/32 is subnetted, 1 subnets
 - D 1.1.1.1 [90/2297856] via 10.1.12.1, 00:02:12, Serial1/0.12
 - 2.0.0.0/32 is subnetted, 1 subnets
 - C 2.2.2.2 is directly connected, Loopback0
 - 3.0.0.0/32 is subnetted, 1 subnets
 - D 3.3.3.3 [90/2809856] via 10.1.12.1, 00:01:23, Serial1/0.12
 - 10.0.0.0/24 is subnetted, 2 subnets
 - D 10.1.13.0 [90/2681856] via 10.1.12.1, 00:09:00, Serial1/0.12
 - C 10.1.12.0 is directly connected, Serial1/0.12
 - R3#show ip route
 - Gateway of last resort is not set
 - 1.0.0.0/32 is subnetted, 1 subnets
 - D 1.1.1.1 [90/2297856] via 10.1.13.1, 00:02:47, Serial1/0.13
 - 2.0.0.0/32 is subnetted, 1 subnets
 - D 2.2.2.2 [90/2809856] via 10.1.13.1, 00:02:14, Serial1/0.13
 - 3.0.0.0/32 is subnetted, 1 subnets
 - C 3.3.3.3 is directly connected, Loopback0
 - 10.0.0.0/24 is subnetted, 2 subnets
 - C 10.1.13.0 is directly connected, Serial1/0.13
 - D 10.1.12.0 [90/2681856] via 10.1.13.1, 00:08:28, Serial1/0.13
 
R1,R2,R3都可以互相学习虚拟网段了,全网互通.
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