CCNP实验大全--eigrp troubleshooting
Eigrp Troubleshooting
【实验拓扑】
2.2
1.2
3.2
20.1
2.1
2.1
3.1
1.3
环回网络
2.3
172.168.4.0/24
说明：以RTE为界分为内部网络（左边）和外部网络（右边），内部网络运行EIGRP 协议，外部网络运行RIP协议。
【实验目的】
1．网络可以正常工作，所有路由器可以看以网络172.168.1.0/24, 172.168.2.0/24, 172.168.2.0/24, 172.168.4.0/24, 162.16.1.0/24, 150.150.0.0/16。
2．RTD上有两条到达网络172.168.2.0/24的路径,而只有一条到达网络172.168.4.0/24的路径（事先已经配置好让RTC不在以太网口发布这个网络）。
3．外部网络除150.150.0.0/16外全部不能被内部网络看到，内部网络只能通过缺省网络访问其它外部网络。
【错误设计】
一、二层出错，帧中继交换机被配成单向链路（即少一条frame-relay map）
RTA#sh ip route
172.168.0.0/24 is subnetted, 3 subnets
C 172.168.1.0 is directly connected, FastEthernet0
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/21026560] via 172.168.2.3, 00:34:08, Serial0.1
162.16.0.0/24 is subnetted, 1 subnets
D 162.16.1.0 [90/20514560] via 172.168.2.3, 00:37:34, Serial0.1
D EX 150.150.0.0/16 [170/21282560] via 172.168.2.3, 00:24:00, Serial0.1
RTA#sh ip eigrp neighbors
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
1 172.168.2.3 Se0.1 13 00:38:21 308 1848 0 23 RTA#sh frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
Active Inactive Deleted Static
Local 1 0 1 0
Switched 0 0 0 0
Unused 0 0 0 0
DLCI = 101, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0.1
input pkts 886 output pkts 97 in bytes 73955
out bytes 7548 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 40 out bcast bytes 2560
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 01:04:01, last time pvc status changed 00:01:42
DLCI = 201, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0.1
input pkts 874 output pkts 97 in bytes 70019
out bytes 7068 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 42 out bcast bytes 2688
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 01:03:55, last time pvc status changed 01:00:26
RTB#sh frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
Active Inactive Deleted Static
Local 0 1 0 0
Switched 0 0 0 0
Unused 0 0 0 0
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = INACTIVE, INTERFACE = Serial0.1
input pkts 97 output pkts 891 in bytes 7548
out bytes 74544 dropped pkts 0 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 863 out bcast bytes 72401
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 01:17:38, last time pvc status changed 00:02:43
RTB#sh ip route
172.168.0.0/24 is subnetted, 3 subnets
D 172.168.1.0 [90/20517120] via 162.16.1.3, 00:03:03, FastEthernet0
D 172.168.2.0 [90/20514560] via 162.16.1.3, 00:03:03, FastEthernet0
D 172.168.3.0 [90/2172416] via 162.16.1.1, 00:36:45, FastEthernet0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0
D EX 150.150.0.0/16 [170/2428416] via 162.16.1.1, 00:26:38, FastEthernet0
二、共亨链路带宽问题，让B和C到帧中继网络有不同的带宽，但必须让D有两条到A的路由。
RTB#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RTB(config)#int s0.1
RTB(config-subif)#bandwidth 2040
RTC(config)#int s0.1
RTC(config-subif)#bandwidth 2048
RTD#sh ip route
172.168.0.0/24 is subnetted, 3 subnets
D 172.168.1.0 [90/1789952] via 162.16.1.3, 00:00:03, FastEthernet0/0
D 172.168.2.0 [90/1787392] via 162.16.1.3, 00:00:03, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:03, Serial0/0
RTD#sh ip eigrp topology 172.168.2.0 255.255.255.0
IP-EIGRP (AS 1): Topology entry for 172.168.2.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 1787392
Routing Descriptor Blocks:
162.16.1.3 (FastEthernet0/0), from 162.16.1.3, Send flag is 0x0
Composite metric is (1787392/1761792), Route is Internal
Vector metric:
Minimum bandwidth is 2048 Kbit
Total delay is 21000 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
162.16.1.2 (FastEthernet0/0), from 162.16.1.2, Send flag is 0x0
Composite metric is (1792256/1766656), Route is Internal
Vector metric:
Minimum bandwidth is 2040 Kbit
Total delay is 21000 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 1
加入Variance 2
RTD#sh ip route
172.168.0.0/24 is subnetted, 3 subnets
D 172.168.1.0 [90/1789952] via 162.16.1.3, 00:00:03, FastEthernet0/0
D 172.168.2.0 [90/1787392] via 162.16.1.3, 00:00:03, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:00:03, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:03, Serial0/0
三、水平分割问题，A的多少接口上的水平分割让网络172.168.4.0/25只能被A收到，当然还要配分发列表。
RTC(config)#int loopback 0
RTC(config-if)#ip addr 172.168.4.1 255.255.255.0
RTC(config-if)#exit
RTC(config)#router eigrp 1
RTC(config-router)#distribute-list 1 out fastEthernet 0
RTC(config-router)#exit
RTC(config)#access
RTC(config)#access-list 1 deny 172.168.4.0 0.0.0.255
RTC(config)#access-
RTC(config)#access-list 1 permit any
RTA#sh ip rout
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/20640000] via 172.168.2.3, 00:01:47, Serial0.1
C 172.168.1.0 is directly connected, FastEthernet0
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/21026560] via 172.168.2.2, 00:01:06, Serial0.1
[90/21026560] via 172.168.2.3, 00:01:06, Serial0.1
162.16.0.0/24 is subnetted, 1 subnets
D 162.16.1.0 [90/20514560] via 172.168.2.3, 00:12:05, Serial0.1
[90/20514560] via 172.168.2.2, 00:12:06, Serial0.1
D EX 150.150.0.0/16 [170/21282560] via 172.168.2.2, 00:01:07, Serial0.1
[170/21282560] via 172.168.2.3, 00:01:07, Serial0.1
RTB#sh ip route
172.168.0.0/24 is subnetted, 3 subnets
D 172.168.1.0 [90/1769216] via 172.168.2.1, 00:02:21, Serial0.1
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/2172416] via 162.16.1.1, 00:12:38, FastEthernet0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0
D EX 150.150.0.0/16 [170/2428416] via 162.16.1.1, 00:12:38, FastEthernet0
RTA(config-subif)#no ip split-horizon eigrp 1
RTB#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21152000] via 172.168.2.1, 00:00:06, Serial0.1
D 172.168.1.0 [90/1769216] via 172.168.2.1, 00:00:06, Serial0.1
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/2172416] via 162.16.1.1, 00:00:06, FastEthernet0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0
D EX 150.150.0.0/16 [170/2428416] via 162.16.1.1, 00:00:06, FastEthernet0
四、是否允许广播，当在多点接口上不加入关键字broadcast时，会出现hello包无法发送因为它使用了组播地址。
RTA(config-subif)#no frame-relay map ip 172.168.2.2 101 broadcast
RTA(config-subif)#frame-relay map ip 172.168.2.2 101
RTA(config-subif)#no frame-relay map ip 172.168.2.3 201 broadcast
RTA(config-subif)#frame-relay map ip 172.168.2.3 201
RTA(config-subif)#
RTA#sh ip eigrp nei
IP-EIGRP neighbors for process 1
为空，加入后的输出：
RTA#sh ip eigrp nei
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
1 162.16.1.3 Fa0 11 00:00:18 4 200 0 104
0 162.16.1.1 Fa0 10 00:00:18 8 200 0 106
五、不连续子网问题，B、C、D之间的网络把172.168.0.0/16分开，如果不在这些路由器中配置no auto-summary命令会造成有的网络收不到。
RTD(config)#router eigrp 1
RTD(config-router)#auto-summary
RTB#sh ip route
172.168.0.0/16 is variably subnetted, 4 subnets, 2 masks
D 172.168.4.0/24 [90/21152000] via 172.168.2.1, 00:02:15, Serial0.1
D 172.168.0.0/16 [90/1794816] via 162.16.1.1, 00:00:32, FastEthernet0
D 172.168.1.0/24 [90/1769216] via 172.168.2.1, 00:02:15, Serial0.1
C 172.168.2.0/24 is directly connected, Serial0.1
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0
D EX 150.150.0.0/16 [170/2428416] via 162.16.1.1, 00:00:35, FastEthernet0
六、不共同子网，当配错D的以太网口时，无法建立邻居关系，而且有错误提示。
RTD(config-if)#ip addr 162.16.11.1 255.255.255.0
RTD(config-if)#
02:32:24: IP-EIGRP: Neighbor 162.16.1.2 not on common subnet for FastEthernet0/0 (162.16.11.1 255.255.255.0
七、K不同也会造成邻居问题
RTD(config)#router eigrp 1
RTD(config-router)#metric weights 0 1 1 1 1 0
RTD(config)#^Z
RTD#
02:36:36: %SYS-5-CONFIG_I: Configured from console by consoleear
RTD#sh ip eigrp nei
IP-EIGRP neighbors for process 1
RTD(config-router)#metric weights 0 1 0 1 0 0
RTD(config-router)#exit
RTD(config)#exit
RTD#
02:37:57: %SYS-5-CONFIG_I: Configured from console by console
RTD#clear ip eigrp nei
RTD#sh ip eigrp ne i
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
2 162.16.1.
3 Fa0/0 1
4 00:00:02 1 3000 2 167
1 162.16.1.
2 Fa0/0 1
3 00:00:03 1 3000 2 191
0 172.168.3.2 Se0/0 14 00:00:05 26 200 0 70
八、发布列表，在E上不进行路由发布过滤时会让内部路由器看到所有路由。
RTD#sh ip route
D EX 170.170.0.0/16 [170/2425856] via 172.168.3.2, 00:00:06, Serial0/0
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:01:33, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.3, 00:01:33, FastEthernet0/0
[90/1794816] via 162.16.1.2, 00:01:33, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.3, 00:01:33, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:01:33, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 160.160.0.0/16 [170/2425856] via 172.168.3.2, 00:00:06, Serial0/0
131.66.0.0/24 is subnetted, 1 subnets
D EX 131.66.20.0 [170/2425856] via 172.168.3.2, 00:00:07, Serial0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:15, Serial0/0
RTE(config)#router eigrp 1
RTE(config-router)#distribute-list 1 out
Access-list 1 permit 150.150.0.0 0.0.255.255
RTD#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:03:26, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.3, 00:03:26, FastEthernet0/0
[90/1794816] via 162.16.1.2, 00:03:26, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.3, 00:03:26, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:03:26, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:03, Serial0/0
九、重发布，没有default-metric命令的话重发布是不会发生。
RTD#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:05:01, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.3, 00:05:01, FastEthernet0/0
[90/1794816] via 162.16.1.2, 00:05:01, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.3, 00:05:01, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:05:01, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
RTE(config)#router eigrp 1
RTE(config-router)#default-metric 10000 1000 255 1 1500
RTD#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:06:45, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.3, 00:06:45, FastEthernet0/0
[90/1794816] via 162.16.1.2, 00:06:45, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.3, 00:06:45, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:06:45, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:25, Serial0/0
十、从复ID，A和E都使用环回地址192.168.1.1，所以E重发布的路由A不接爱。RTA#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/20640000] via 172.168.2.3, 00:00:30, Serial0.1
C 172.168.1.0 is directly connected, FastEthernet0
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/21026560] via 172.168.2.3, 00:00:30, Serial0.1
[90/21026560] via 172.168.2.2, 00:00:30, Serial0.1
162.16.0.0/24 is subnetted, 1 subnets
D 162.16.1.0 [90/20514560] via 172.168.2.3, 00:00:30, Serial0.1
[90/20514560] via 172.168.2.2, 00:00:30, Serial0.1
C 192.168.1.0/24 is directly connected, Loopback0
RTD#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:01:15, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.3, 00:01:15, FastEthernet0/0
[90/1794816] via 162.16.1.2, 00:01:15, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.3, 00:02:15, FastEthernet0/0
[90/1792256] via 162.16.1.2, 00:02:15, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:02:53, Serial0/0
改了E的环回地址，重启后就正常了。
RTA#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/20640000] via 172.168.2.3, 00:09:38, Serial0.1
C 172.168.1.0 is directly connected, FastEthernet0
C 172.168.2.0 is directly connected, Serial0.1
D 172.168.3.0 [90/21026560] via 172.168.2.3, 00:00:41, Serial0.1
[90/21026560] via 172.168.2.2, 00:00:41, Serial0.1
162.16.0.0/24 is subnetted, 1 subnets
D 162.16.1.0 [90/20514560] via 172.168.2.3, 00:09:38, Serial0.1
[90/20514560] via 172.168.2.2, 00:09:38, Serial0.1
C 192.168.1.0/24 is directly connected, Loopback0
D EX 150.150.0.0/16 [170/21282560] via 172.168.2.3, 00:00:27, Serial0.1
[170/21282560] via 172.168.2.2, 00:00:27, Serial0.1
十一、认证问题，当D上没有配论证，而E上配了时，它们会无法建立邻居关系。RTE(config)#int s0/0
RTE(config-if)#ip authentication mode eigrp 1 md5
RTE(config-if)#ip authentication key-chain eigrp 1 holly
RTE(config-if)#key chain holly
RTE(config-keychain)#key 1
RTE(config-keychain-key)#key-string 123
RTE#sh ip eigrp nei
IP-EIGRP neighbors for process 1
RTD(config)#int s0/0
RTD(config-if)#ip au
RTD(config-if)#ip authentication mode ei
RTD(config-if)#ip authentication mode eigrp 1 md5
RTD(config-if)#ip au
RTD(config-if)#ip authentication key
RTD(config-if)#ip authentication key-chain eig
RTD(config-if)#ip authentication key-chain eigrp 1 mikey
RTD(config-if)#key chain mikey
RTD(config-keychain)#key 1
RTD(config-keychain-key)#key
RTD(config-keychain-key)#key-string 123
RTD(config-keychain-key)#^Z
RTD#
03:22:16: %SYS-5-CONFIG_I: Configured from console by console
RTD#sh ip eigrp nei
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
2 172.168.3.2 Se0/0 14 00:00:00 1 2000 1 0
1 162.16.1.
2 Fa0/0 14 00:00:04 1 3000
3 291
0 162.16.1.3 Fa0/0 14 00:00:05 4 200 0 276 RTD#sh ip route
172.168.0.0/24 is subnetted, 4 subnets
D 172.168.4.0 [90/21177600] via 162.16.1.2, 00:00:10, FastEthernet0/0
D 172.168.1.0 [90/1794816] via 162.16.1.2, 00:00:10, FastEthernet0/0
[90/1794816] via 162.16.1.3, 00:00:10, FastEthernet0/0
D 172.168.2.0 [90/1792256] via 162.16.1.2, 00:00:10, FastEthernet0/0
[90/1792256] via 162.16.1.3, 00:00:10, FastEthernet0/0
C 172.168.3.0 is directly connected, Serial0/0
162.16.0.0/24 is subnetted, 1 subnets
C 162.16.1.0 is directly connected, FastEthernet0/0
D EX 150.150.0.0/16 [170/2425856] via 172.168.3.2, 00:00:06, Serial0/0
十二、默认路由问题
在EIGRP中是不能用ip route 0.0.0.0 0.0.0.0 next-hop命令来通告默认路由的，只能用ip default-network命令来进行配置，比如在RTE上使用ip default-network 150.150.0.0 255.255.0.0，这样将使其它路由器上的150.150.0.0/16网络变成缺省网络（有*号）。
2513#show 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
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, * - candidate default
Gateway of last resort is 161.44.192.2 to network 198.10.1.0
161.44.0.0 255.255.255.0 is subnetted, 1 subnets
C 161.44.192.0 is directly connected, Ethernet0
S 161.44.0.0 255.255.0.0 [1/0] via 161.44.192.0
S* 198.10.1.0 [1/0] via 161.44.192.2
131.108.0.0 255.255.255.0 is subnetted, 1 subnets
C 131.108.99.0 is directly connected, TokenRing0
注：上面的输出不是基于本实验拓扑，只作为说明用。在上面的结果的蓝色部分可以看到有最后的网关了。
【路由器上的错误配置】
注：蓝色为正常时要用的，排错时去掉；绿色为在设错时添加的
帧中继交换机
(Config) # frame-relay switching
s0
int
(Config)
#
! 进入s0端口
(config-if) # enacapsulation frame-relay
(config-if) # frame-relay intf-type dce
! 设置端口类型为DCE
(config-if) # frame-relay lmi-type cisco
! 配置lmi类型
(config-if) # clock rate 56000
(config-if) # frame-relay route 101 interface s1 102！建立一条交换记录
(config-if) # frame-relay route 201 interface s2 202 ! 建立第二条交换记
(config-if) # no shut
(config-if) # exit
(Config) # int s1
！进入s1端口
(config-if) # encapsulation frame-relay
(config-if) # frame-relay intf-type dce
(config-if) # frame-relay lmi-type cisco
(config-if) # clock rate 56000
(config-if) # frame-relay route 102 interface s0 101
(config-if) # no shut
(config-if) # exit
(Config) # int s2
！进入s2端口
(config-if) # enacapsulation frame-relay
(config-if) # frame-relay intf-type dce
(config-if) # frame-relay lmi-type cisco
(config-if) # clock rate 56000
(config-if) # frame-relay route 202 interface s0 201
(config-if) # no shut
(config-if) # exit
路由器RTA的配置
int e 0
ip addr 172.168.1.1 255.255.255.0
no shut
int s0
encapsulation frame-relay
frame-relay lmi-type cisco
int s0.1 multipoint
ip addr 172.168.2.1 255.255.255.0
frame-relay map ip 172.168.2.2 101 broadcast(frame-relay map ip 172.168.2.2 102) frame-relay map ip 172.168.2.3 201 broadcast(frame-relay map ip 172.168.2.2 202) no ip split-horizon eigrp 1
no shut
int loopback 0
ip addr 192.168.1.1 255.255.255.0
exit
router eigrp 1
network 172.168.0.0
exit
路由器RTB的配置
int e 0
ip addr 162.16.1.2 255.255.255.0
no shut
int s0
no ip addr
encapsulation frame-relay
frame-relay lmi-type cisco
int s0.1 point-to-point
bandwidth 2048 (bandwidth 2040)
ip addr 172.168.2.2 255.255.255.0
frame-relay interface-dlci 102
exit
no shut
router eigrp 1
network 172.168.0.0
network 162.16.0.0
no auto-summary
exit
路由器RTC的配置
int e 0
ip addr 162.16.1.3 255.255.255.0
no shut
RTC(config)#int loopback 0
RTC(config-if)#ip addr 172.168.4.1 255.255.255.0
int s0
encapsulation frame-relay
frame-relay lmi-type cisco
int s0.1 point-to-point
bandwidth 2048
ip addr 172.168.2.3 255.255.255.0
frame-relay interface-dlci 202
exit
no shut
router eigrp 1
distribute-list 1 out fastEthernet 0
network 172.168.0.0
network 162.16.0.0
no auto-summary
Exit
access-list 1 deny 172.168.4.0 0.0.0.255
access-list 1 permit any
路由器RTD的配置
int e 0
ip addr 162.16.1.1 255.255.255.0 (ip addr 162.16.11.1 255.255.255.0) no shut
int s0
RTD(config-if)#ip authentication mode eigrp 1 md5
RTD(config-if)#ip authentication key-chain eigrp 1 mikey
RTD(config-if)#key chain mikey
RTD(config-keychain)#key 1
RTD(config-keychain-key)#key-string 123
ip addr 172.168.3.1 255.255.255.0
clock rate 56000
no shut
router eigrp 1
network 172.168.0.0
network 162.16.0.0
no auto-summary
metric weights 0 1 1 1 1 0
exit
路由器RTE的配置
int s 0
RTE(config-if)#ip authentication mode eigrp 1 md5
RTE(config-if)#ip authentication key-chain eigrp 1 holly
RTE(config-if)#key chain holly
RTE(config-keychain)#key 1
RTE(config-keychain-key)#key-string 123
ip addr 172.168.3.2 255.255.255.0
clock rate 56000
no shut
int s1
ip addr 131.66.20.1 255.255.255.0
clock rate 56000
no shut
int loopback 0
ip addr 192.168.6.1 255.255.255.0(ip addr 192.168.1.1 255.255.255.0) exit
router eigrp 1
network 172.168.0.0
redistribute rip
default-metric 10000 100 255 1 1500
distribute-list 1 out
exit
router rip
network 131.66.0.0
access-list 1 permit 150.150.0.0 0.0.255.255
外部的配置
int s0
ip addr 131.66.20.2
clock rate 56000
no shut
int loopback 0
ip addr 150.150.0.1 255.255.0.0
int loopback 1
ip addr 160.160.0.1 255.255.0.0
int loopback 2
ip addr 170.170.0.1 255.255.0.0
router rip
network 150.150.0.0 network 160.160.0.0 network 170.170.0.0