3.3.i Implement, optimize and troubleshoot manual and auto summarization with any routing protocol

R8(config-router)#do sh ip int brie | b Loop
Loopback0                  8.8.8.8         YES manual up                    up
Loopback1                  172.16.0.1      YES manual up                    up
Loopback2                  172.16.1.1      YES manual up                    up
Loopback3                  172.16.2.1      YES manual up                    up

use area range on the abr for inter-area…

R7(config)#router ospf 1
R7(config-router)#area 1 range 172.16.0.0 255.255.252.0

R6(config-router)#do sh ip route ospf
172.16.0.0/22 is subnetted, 1 subnets
O IA    172.16.0.0 [110/3] via 10.1.67.7, 00:09:40, FastEthernet1/0

3.4.a Implement and troubleshoot RIPv2

R8(config-router)#do sh run | sec rip
router rip
version 2
network 0.0.0.0
no auto-summary

R7#sh ip route rip
172.16.0.0/24 is subnetted, 3 subnets
R       172.16.0.0 [120/1] via 10.1.78.8, 00:00:18, FastEthernet0/0
R       172.16.1.0 [120/1] via 10.1.78.8, 00:00:18, FastEthernet0/0
R       172.16.2.0 [120/1] via 10.1.78.8, 00:00:18, FastEthernet0/0
8.0.0.0/24 is subnetted, 1 subnets
R       8.8.8.0 [120/1] via 10.1.78.8, 00:00:18, FastEthernet0/0

R7#sh run | sec ospf
ip ospf authentication-key cisco
router ospf 1
log-adjacency-changes
summary-address 172.16.0.0 255.255.252.0
 redistribute rip subnets
network 0.0.0.0 255.255.255.255 area 0
redistribute ospf 1 metric 5

R5#sh ip route | i 172
172.16.0.0/22 is subnetted, 1 subnets
D EX    172.16.0.0