IT2762 Network and Communication
Tutorial 08 – Routing Dynamically
AY2018 S1

1)	Which statement about network convergence is true?
a)	The network is converged when all routers have the same routes in their routing table.
b)	The network is converged when all routers have exchanged hello packets.
c)	The network is converged when all routers have complete and accurate information about the entire network.
d)	The network is converged when all routers have the same metric value to destination networks.


2)	Which of these routing protocols support only classful networks?
a)	OSPF.
b)	RIPv1.
c)	RIPv2.
d)	EIGRP.


Short Answer Questions

1)	List the functions of dynamic routing protocol
Automatic discover remote networks
Maintain up-to-date routing information
Chooses the best path to destination networks
Find a new best path if the current path is no longer available

2)	List the 3 main components of dynamic routing protocols.
Data Structures
-	Routing protocols typically use tables for operations which is kept in RAM
Routing protocol messages
-	Various types of messages are used to discover neighbour router exchange router information and for learing and updating network information
Algorithm
-	They use algorithms to find the best path to destination networka

3)	List 2 advantages and disadvantages of using dynamic routing protocols.
Advantages
-	Router automatically share routing info
-	Dynamically determine best paths to destination networks and add the information to its routing tables
-	Require less admin overhead compared to static routing
Disadvantages
-	Requires more resources like CPU, RAM and network bandwidth
-	Less secure compared to static routing


4)
Refer to the network topology above. The router interfaces have already been configured with IP addresses. Show the IOS commands to:-
a.	Configure the routers with RIPv2
b.	Disable RIP updates on the LAN interfaces
a)
R1>en
R1#config t
R1(config-t)#Router rip
R1(config-router)#Version 2
R1(config-router)#Network 192.168.1.0
R1(config-router)#Network 192.168.2.0
R1(config-router)#no auto-summary

R2>en
R2#config t
R2(config-t)#router rip
R2(config-router)#version 2
R2(config-router)#network 192.168.2.0
R2(config-router)#network 192.168.3.0
R2(config-router)#network 192.168.4.0
R2(config-router)#no auto-summary

R3>en
R3#config t
R3(config-t)#router rip
R3(config-router)#version 2
R3(config-router)#network 192.168.4.0
R3(config-router)#network 192.168.5.0
R3(config-router)#no auto-summary

b)
R1(config-router)#no passive-interface g0/0
R2(config-router)#no passive-interface g0/0
R3(config-router)#no passive-interface g0/0








5)
Refer to the network topology above. The router interfaces have already been configured with IP addresses. R1 is connected on G0/0 and S0/0/0. Configure router R1 with RIPng. Use the process name “NYP” in your configuration.