Hi All,

Need to seek some kind advices on this task.

1.) When doing mutual redistribution between RIP and OSPF at R4, how come we do not have to lower down the distance of RIP from 120 to 119? In the past labs, eg Lab 3 Task 4.9, it is the same scenario of mutual redistribution between RIP and OSPF at one single point, instead of multiple points.

R4
router rip
distance 109

2.) Why is there a need to summarize the routes under R4 e0/0 interface? Since the task is asking for "routers in the OSPF domain should have minimum amount of roytes needed to reach the RIP routes learned rom BB3".

R4

int e0/0

ip summary-address rip 162.1.0.0 255.255.0.0

ip summary-address rip 150.1.0.0 255.255.240.0

by configuring the 2 x summary addresses under OSPF, it would have satisfied the task requirements?

R4

router ospf 1

summary address 30.0.0.0 255.252.0.0

summary address 31.0.0.0 255.252.0.0

3.) Why is there a need to redistribute R4's E0/0 as a connected interface into OSPF process? R4's E0/0 has been advertised into the RIP domain, which in turn got redistributed into OSPF domain

4.) Why is there a need to redistribute R4's S1/1 as a connected interface into OSPF? Is this part of the task? where it states "gain full reachability throughout the network"? What is the exact definition of "throughout the network" including SW3 and SW4 which were not advertised into any IGP domains?

Thanks for any kind replies.

Cheers

Nit