CCNP Day5 EIGRP默认路由三

1、网络拓扑

2、基础Eigrp配置

R1>
R1>enable
R1#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#interface f0/0
R1(config-if)#ip add 172.16.12.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface loopback 0
R1(config-if)#ip add 1.1.1.1 255.255.255.0
R1(config-if)#no shu
R1(config-if)#no shutdown 
R1(config-if)#exit
R1(config)#router eigrp 100
R1(config-router)#network 172.16.12.1 0.0.0.0
R1(config-router)#network 1.1.1.1 0.0.0.0
R1(config-router)#exit
R1(config)#
R1(config)#interface s1/1
R1(config-if)#ip add 1.1.13.1 255.255.255.0
R1(config-if)#no shutdown 
R1(config-if)#exit
R1(config)#router eigrp 100
R1(config-router)#1.1.13.1 255.255.255.0
R1(config-router)#network 1.1.13.1 255.255.255.0
R1(config-router)#
R1(config-router)#
R1(config-router)#
R1(config-router)#end
R1#
R1#
R1(config)#router eigrp 100
R1(config-router)#no auto-summary 


R2>
R2>enable
R2#config t
R2(config)#interface f0/0
R2(config-if)#ip add 172.16.12.2 255.255.255.0
R2(config-if)#no shutdown 
R2(config-if)#exit
R2(config)#
R2(config)#interface s1/0
R2(config-if)#ip add 192.168.23.1 255.255.255.0
R2(config-if)#no shutdown 
R2(config-if)#exit
R2(config)#router eigrp 100
R2(config-router)#network 192.168.23.1 0.0.0.0
R2(config-router)#network 172.16.12.2 0.0.0.0
R2(config-router)#end
R2(config)#router eigrp 100
R2(config-router)#no auto
R2(config-router)#no auto-summary 
R2(config-router)#
R2(config-router)#
R2(config-router)#
R2(config-router)#
R2(config-router)#end
R2#show ip eigrp topology 
IP-EIGRP Topology Table for AS(100)/ID(192.168.23.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status 

P 1.1.1.0/24, 1 successors, FD is 156160
        via 172.16.12.1 (156160/128256), FastEthernet0/0
P 3.3.3.0/24, 1 successors, FD is 2297856
        via 192.168.23.2 (2297856/128256), Serial1/0
P 1.1.13.0/24, 1 successors, FD is 2172416
        via 172.16.12.1 (2172416/2169856), FastEthernet0/0
        via 192.168.23.2 (2681856/2169856), Serial1/0
P 192.168.23.0/24, 1 successors, FD is 2169856
        via Connected, Serial1/0
P 172.16.12.0/24, 1 successors, FD is 28160
        via Connected, FastEthernet0/0
R2#


R3>enable
R3#config t
R3(config)#
R3(config)#interface s1/0
R3(config-if)#ip add 192.168.23.2 255.255.255.0
R3(config-if)#no shutdown 
R3(config-if)#exit
R3(config)#interface loopback 0
R3(config-if)#ip add 3.3.3.3 255.255.255.0
R3(config-if)#no shutdown 
R3(config)#router eigrp 100
R3(config-router)#network 3.3.3.3 0.0.0.0
R3(config-router)#network 192.168.23.2 0.0.0.0
R3(config-router)#end
R3#show ip route 
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, 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    1.0.0.0/8 [90/2300416] via 192.168.23.1, 00:00:11, Serial1/0
     3.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       3.3.3.0/24 is directly connected, Loopback0
D       3.0.0.0/8 is a summary, 00:00:16, Null0
D    172.16.0.0/16 [90/2172416] via 192.168.23.1, 00:00:11, Serial1/0
C    192.168.23.0/24 is directly connected, Serial1/0
R3#ping 1.1.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 56/75/88 ms
R3#
R3#
R3#
R3(config)#interface s1/1
R3(config-if)#ip add 1.1.13.2 255.255.255.0
R3(config-if)#exit
R3(config)#router eigrp 100
R3(config-router)#network 1.1.13.2 0.0.0.0
R3(config-router)#end
R3#
R3#
R3#
R3#show ip route 
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, 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    1.0.0.0/8 [90/2300416] via 192.168.23.1, 00:30:48, Serial1/0
     3.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       3.3.3.0/24 is directly connected, Loopback0
D       3.0.0.0/8 is a summary, 00:30:53, Null0
D    172.16.0.0/16 [90/2172416] via 192.168.23.1, 00:30:48, Serial1/0
C    192.168.23.0/24 is directly connected, Serial1/0
R3#
R3#
R3#show ip eigrp topology 
IP-EIGRP Topology Table for AS(100)/ID(3.3.3.3)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
       r - reply Status, s - sia Status 

P 1.0.0.0/8, 1 successors, FD is 2300416
        via 192.168.23.1 (2300416/156160), Serial1/0
P 3.0.0.0/8, 1 successors, FD is 128256
        via Summary (128256/0), Null0
P 3.3.3.0/24, 1 successors, FD is 128256
        via Connected, Loopback0
P 192.168.23.0/24, 1 successors, FD is 2169856
        via Connected, Serial1/0
P 172.16.0.0/16, 1 successors, FD is 2172416
        via 192.168.23.1 (2172416/28160), Serial1/0
R3#
R3#show ip eigrp neighbors 
IP-EIGRP neighbors for process 100
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
                                            (sec)         (ms)       Cnt Num
1   1.1.13.1                Se1/1             13 00:00:01    1  2000  2  5
0   192.168.23.1            Se1/0             13 00:33:34  614  3684  
R3(config)#router eigrp 100
R3(config-router)#no aut
R3(config-router)#no auto-summary 
R3(config-router)#end
R3#
R3#
R

2、网络拓扑