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CCNP Route Lab: Redistribution RIPv1, OSPF, EIGRP

Topology
GNS3 topology download

ROUTER 5

Receive routes with metric redistributed from neighbor.
R5#sh ip int br
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/1            172.16.1.5      YES manual up                    up
R5#sh run | sec router
router rip
 version 1
 network 172.16.0.0
R5#sh ip route | b Gate
Gateway of last resort is not set
R    4.0.0.0/8 [120/5] via 172.16.1.1, 00:00:08, FastEthernet0/1
     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.1.0 is directly connected, FastEthernet0/1
R    10.0.0.0/8 [120/5] via 172.16.1.1, 00:00:08, FastEthernet0/1
R    192.168.1.0/24 [120/5] via 172.16.1.1, 00:00:08, FastEthernet0/1
R5#

ROUTER 1
- EIGRP will auto-sum routes, when redistributed to classful protocol (RIPv1, IGRP), even no auto-summary is configured
- EIGRP will NOT auto-sum external (redistributed) routes, sended to another EIGRP neighbor, even auto-summary is configured


R1#sh ip int br | exc down
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            10.1.1.1        YES manual up                    up
FastEthernet0/1            172.16.1.1      YES manual up                    up
R1#sh run | sec router
router eigrp 1
 redistribute rip metric 10 100 255 1 1500
 network 10.1.1.1 0.0.0.0
 auto-summary
router rip
 version 1
 redistribute eigrp 1 metric 5
 network 172.16.0.0

R1#sh ip route | b Gate
Gateway of last resort is not set
     4.0.0.0/32 is subnetted, 1 subnets
D EX    4.4.4.4 [170/256028160] via 10.1.1.2, 00:23:34, FastEthernet0/0
     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.1.0 is directly connected, FastEthernet0/1
     10.0.0.0/24 is subnetted, 1 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
D EX 192.168.1.0/24 [170/256028160] via 10.1.1.2, 00:23:34, FastEthernet0/0
R1#


EIGRP Update with auto-summary enabled

ROUTER 2
R2#sh ip route | beg Gate
Gateway of last resort is not set
     4.0.0.0/32 is subnetted, 1 subnets
O IA    4.4.4.4 [110/2] via 192.168.1.4, 01:10:21, FastEthernet0/1
     172.16.0.0/24 is subnetted, 1 subnets
D EX    172.16.1.0 [170/256028160] via 10.1.1.1, 00:43:06, FastEthernet0/0
     10.0.0.0/24 is subnetted, 1 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
C    192.168.1.0/24 is directly connected, FastEthernet0/1
R2#

ROUTER 4
R4#sh ip route | beg Ga
Gateway of last resort is not set
     4.0.0.0/24 is subnetted, 1 subnets
C       4.4.4.0 is directly connected, Loopback4
     172.16.0.0/24 is subnetted, 1 subnets
O E2    172.16.1.0 [110/20] via 192.168.1.2, 00:43:24, FastEthernet0/1
     10.0.0.0/24 is subnetted, 1 subnets
O E2    10.1.1.0 [110/20] via 192.168.1.2, 01:10:29, FastEthernet0/1
C    192.168.1.0/24 is directly connected, FastEthernet0/1
R4#

ROUTER 3
R3#sh  ip route | be Gate
Gateway of last resort is not set
     4.0.0.0/32 is subnetted, 1 subnets
D EX    4.4.4.4 [170/256028160] via 10.1.1.2, 01:11:35, FastEthernet0/0
     172.16.0.0/24 is subnetted, 1 subnets
D EX    172.16.1.0 [170/256028160] via 10.1.1.1, 00:44:56, FastEthernet0/0
     10.0.0.0/24 is subnetted, 1 subnets
C       10.1.1.0 is directly connected, FastEthernet0/0
D EX 192.168.1.0/24 [170/256028160] via 10.1.1.2, 01:11:35, FastEthernet0/0
R3#