Task 1 :- Create Topolgy As given in pic.
Task 2 :- Configure IP address as per given pic.  
Task 3 :- Configure Routing protocol ( RIP).
Task 4 :- Make sure R1 Pc is communicated with R3 pc.
Task 5 :- block  trafic IT Department PC  to Sales Department PC.

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Task 1 :- Create Topolgy As given in pic.


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Task 2 :- Configure IP address as per given pic.

R1

R1>

R1>en

R1#
R1#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

R1(config)#
R1(config)#interface fastEthernet 0/1

R1(config-if)#

R1(config-if)#ip address 192.168.12.1 255.255.255.0

R1(config-if)#

R1(config-if)#no shutdown


R1(config-if)#exit

R1(config)#
R1(config)#interface fastEthernet 0/0

R1(config-if)#

R1(config-if)#ip address 192.168.1.1 255.255.255.0

R1(config-if)#

R1(config-if)#no shutdown


R1(config-if)#exit

R1(config)#exit

R1#


R2

R2>en

R2#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

R2(config)#
R2(config)#interface fastEthernet 0/0

R2(config-if)#

R2(config-if)#ip address 192.168.2.1 255.255.255.0

R2(config-if)#

R2(config-if)#no shutdown



R2(config-if)#
R2(config)#interface fastEthernet 0/1

R2(config-if)#

R2(config-if)#ip address 192.168.12.2 255.255.255.0
R2(config-if)#
R2(config-if)#no shutdown
R2(config)#
R2(config)#interface ethernet 1/0
R2(config-if)#
R2(config-if)#ip address 192.168.23.1 255.255.255.0
R2(config-if)#
R2(config-if)#no shutdown

R3
 
R3>en
R3#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#
R3(config)#interface fastEthernet 0/1
R3(config-if)#
R3(config-if)#ip address 192.168.23.2 255.255.255.0
R3(config-if)#
R3(config-if)#no shutdown

R3(config)#interface fastEthernet 0/0
R3(config-if)#
R3(config-if)#ip address 192.168.3.1 255.255.255.0
R3(config-if)#
R3(config-if)#no shutdown



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 Task 3 :- Configure Routing protocol ( RIP).

R1

R1#

R1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#
R1(config)#R1 rip
R1(config-R1)#
R1(config-R1)#network 192.168.12.0
R1(config-R1)#network 192.168.1.0
R1(config-R1)#
R1(config-R1)#no auto-summary
R1(config-R1)#
R1(config-R1)#version 2
R1(config-R1)#


R2



R2(config)#
R2(config)#R2 rip
R2(config-R2)#net
R2(config-R2)#network 192.168.12.0
R2(config-R2)#network 192.168.2.0
R2(config-R2)#network 192.168.23.0
R2(config-R2)#
R2(config-R2)#no auto-summary
R2(config-R2)#
R2(config-R2)#version 2
R2(config-R2)#exit
R2(config)#


R3


R3(config)#
R3(config)#R3 rip
R3(config-R3)#
R3(config-R3)#network 192.168.12.0
R3(config-R3)#network 192.168.2.0
R3(config-R3)#network 192.168.23.0
R3(config-R3)#
R3(config-R3)#no auto-summary
R3(config-R3)#
R3(config-R3)#version 2
R3(config-R3)#exit
R3(config)#


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Task 4 :- Make sure R1 Pc is communicated with R3 pc.
 From PC1

  
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 Task 5 :- block  trafic IT Department PC  to Sales Department PC.

 If we use extended ACL this Acl always apply on Source it means we 
have to Configure on R1 

let's see

R1(config)#access-list 101 deny ip host 192.168.2.3 host  192.168.3.3
R1(config)#
R1(config)#access-list 101 permit ip any any
R1(config)#

R1(config)#interface fa0/0
R1(config-if)#
R1(config-if)#ip access-group 101 out
R1(config-if)#exit
R1(config)#

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