How to configure RIP in Cisco Routers

RIP (Routing Information Protocol) is the oldest distance vector routing protocol. The maximum number of hop count is 15 and the hop count number 16 is defined as infinite distance. The converged time is slow if compared with other routing protocols such as EIGRP, OSPF and IS-IS. There are two versions in RIP: version 1 and version 2.

 
RIP V1

RIP v1 uses FLSM (fixed length subnet masking) and does not support VLSM(variable length subnet masking). Using FLSM causes IP wastes.

 

FLSM Examples,

192.168.1.0 /24

192.168.2.0 /24



RIP V2

RIP V2 supports VLSM (variable length subnet masking). If there are different amount of hosts in an organization, we should use RIP v2.

 

For example,

HR Department : 20 hosts

Engineering Department: 50 hosts

IT department: 10 hosts

Sales department: 30 hosts

 

The following is the sample configuration of RIP in Cisco Routers.

 Router 1

Activate Connection to Router 2

en
config t
int s0/0/0
ip address 200.100.10.1 255.255.255.252
clock rate 64000
no shut

 
Activate Connection to Switch 1
int g0/0
ip address 192.168.1.1 255.255.255.0
no shut

Configure RIP V1/V2

router rip
version 2
network 192.168.1.0
network 200.100.10.0
end

 
Save the Configuration
copy run start

 
Switch 1
Activate Connection to Router 1

en
config t
int f0/1
no shut
 

Activate Connection to PC5
int f0/2
no shut
 

Activate Connection to PC6
int f0/3
no shut
end
 

Save the Configuration

copy run start

Router 2
Activate Connection to Router 1
en
config t
int s0/0/0
ip address 200.100.10.2 255.255.255.252
clock rate 64000
no shut

 
Activate Connection to Switch 2
int g0/0
ip address 192.168.2.1 255.255.255.0
no shut

Configure RIP V1/V2
router rip
version 2
network 192.168.2.0
network 200.100.10.0
end
 

Save the Configuration
copy run start

 
Switch 2
Activate Connection to Router 2
en
config t
int f0/1
no shut

 
Activate Connection to PC7
int f0/2
no shut
 

Activate Connection to PC8
int f0/3
no shut
end

Save the Configuration
copy run start

Pkt File
Please click here to download packet tracer file.
(Note: you need to give ip address, subnet mask and default gateway to the hosts)

Securing Cisco Networking Devices

We should set passwords in Cisco networking devices so that non authorized people can't access easily. The followings are the ways to set passwords in Cisco networking devices by CLI.

*** Console Password ***

enable (en)

configure terminal (config t)

line console 0

password console123 (type secured password)

 

*** Enable Password ***

enable (en)

configure terminal (config t)

enable password enable123 (type secured password)

 
 
*** Enable Secret ***

enable (en)

configure terminal (config t)

enable secret secret123 (type secured password)

 

*** VTY Password ***

enable (en)

configure terminal (config t)

line vty 0 15

password vty123 (type secured password)

 

*** To go back enable mode ***

 end

 
*** To save configuration ***

 copy run start

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