NETWORK DESIGNING USING ROUTING PROTOCOL RIP v-2

Kamlesh Puri Goswami Dinesh Yadav

GIT

Company Profile Centre for Electronic Governance is an Autonomous

body of the Government of Rajasthan under the

Department of Technical Education.

Founded at Khaitan Polytechnic College Jaipur on 8th

December 2006.

Rajasthan is the Second State, running this kind of

institution to provide quality technical education to all.

The CEG have 18 KDCs(Knowledge Dissemination

Centre) in different Engineering College of Rajasthan.

AgendaSwitchRouterClassfull and Classless addressing, VLSM,

CIDR Scenario Configuring RIPv1Limitations of RIPv1Configuring RIPv2Advantages of RIPv2

Switch A small hardware device that joins multiple computers

together within one local area network (LAN) Technically, network switches operate at layer two (Data

Link Layer) of the OSI model.

24 Port Gigabit Cisco Switch

48 Port Gigabit Cisco

Switch

Router A router connects multiple networks. It has multiple interfaces that each belong to a different

IP network. Router Forward packets toward their destination.

It determines the best path to send packets.

Compact flash module Fast Ethernet port 0/1 Console Port

Single slot USB port Fast Ethernet port 0/0 auxiliary port

High-speed WAN interface card (HWIC) slots

Rear View of Router

Classfull addressing In classfull addressing the subnet mask is based on

class.

There is no need of subnet mask in classfull routing protocols.

Classless addressing In Classfull addressing Subnet mask is not based class. Like – 172.168.100.20/24 Here 172.168.100.24 is a class B address so according to classfull addressing after applying subnet mass of class B (255.255.0.0) the network address will be 172.168.0.0 But in classless addressing subnet mask will be 24 (255.255.255.0) . So after applying it the network address will be 172.168.100.0 In classfull routing protocols we used subnet mask for routing.

VLSM VLSM is simply subnetting a subnet.

CIDR CIDR is a form of route summarization. CIDR ignores the limitation of classful boundaries, and

allows summarization with masks that are less than that of the default classful mask.

It helps reduce the number of entries in routing updates

and tables.

Scenario

Address Table

Configuring RIPv1

Limitations of RIPv1 It does not allow Discontinuous networks –Because the subnet mask is not included in the update, RIPv1 protocol

must summarize networks at major network boundaries.

Limitations of RIPv1 No VLSM Support –

Because RIPv1 does not send the subnet mask in routing updates, it

cannot support VLSM. R3 router is configured with VLSM subnets,

all of which are members of the class B network 172.30.0.0/16:

172.30.100.0/24 (Fast Ethernet 0/0) 172.30.110.0/24 (Loopback 0) 172.30.200.16/28 (Loopback 1) 172.30.200.32/28 (Loopback 2)

Limitations of RIPv1 No CIDR Support We configured a static route to the 192.168.0.0/16 network on R2. But it only update R2 route table not R1 and R3.

Configuring RIPv2

Advantages of RIPv2 It Allow Discontinuous networks :- RIPv2 will not summarize networks to their classful address at

boundary routers. RIPv2 will now include all subnets and their appropriate masks in its

routing updates.

Advantages of RIPv2 It Supports VLSM :- RIPv2 can carry both the network address and the subnet mask. RIPv2 need not to summarize these networks to their classful

addresses.

Advantages of RIPv2 It Support CIDR :- For the superset to be included in a routing update, the routing protocol

must have the capability of carrying that mask. In other words, it must be a classless routing protocol, like RIPv2.

Any Question ???