1. Introduction

RIPV2 is a networking protocol that allows the router to know each other its Distance Vector protocol means that the routers will manipulate tables of hop number to other router here a victor is the table and the distance is the number of hops these protocols apply algorithms like Bellman-Ford to do the job.

Before RIPV2 we had RIP(V1 the V stands for the version) the main difference between both of them is that RIPV2 is classless and RIP is classfull means that RIP doesn't include the subnet mask with network address in the routing update

2. Configure the ip address of the machines

In this case it's so easy go ahead click on the computer and add the ip address

3. Configure the ip address of the Routers Interfaces

Same thing don't waste your time, click on the router and add ip addresses as the schema show in the png file

4. Configuring RIPV2 on the Routers

R1 and R2

router rip
 version 2
 passive-interface GigabitEthernet0/0
 passive-interface GigabitEthernet0/1
 passive-interface GigabitEthernet0/2
 network 10.0.0.0 // computer network address
 network 192.168.0.0 // routers network address
 no auto-summary

R3

router rip
 version 2
 passive-interface GigabitEthernet0/0
 network 192.168.0.0
 default-information originate
 no auto-summary

Configuring default-information originate on the middle router’s RIP process tells RIP to distribute a default route out the interfaces on which it is enabled to all other RIP-speaking routers.

from now, we are not done yet, but we are almost there as I said we have to distribute a kind, of a catch-all route a route that we are going to use when we don't dunno where to go like for example going to the internet. and this route is the default route and this is how you add it.

ip route 0.0.0.0 0.0.0.0 <next-hop>  in our case -> 200.10.1.18  

NAT Configuration

NAT enables private IP internet works that use Unregistered IP addresses to connect to the Internet. NAT operates on a device, usually connecting two networks. Before packets are forwarded onto another network, NAT translates the private (not globally unique) addresses in the internal network into legal addresses. NAT can be configured to advertise to the outside world only one address for the entire network. This ability provides more security by effectively hiding the entire internal network behind that one address. -- FROM CISCO

In Our Case to Configure this first you will have to pick your outside in inside interface go the router and do the following :

1. Inside :

interface <Interface-Name>
ip nat inside

2. Outside

interface <Interface-Name>
ip nat outside