Cisco Packet Tracer tips

Packet Tracer Practical TipsNishant M GandhiTeaching Assistant,Computer Engineering Department,S V National Institute of Technology, [email protected]

Introduction:Packet Tracer is a proprietary tool of Cisco. It is used to create & simulate network virtually. It gives same environment virtually as it exists physically. So what you do need to do and work same on all virtually provided devices as you are working with them physically. This is the beauty of this tool. This tool is widely used in CCNA training. This tool gives all type of network devices require to create one real time working network and also provide same interface as if you are working on real device. Packet Tracer WIKI is available. You can read more online about it. Here my focus is how to use it

Different Operation:

Q1. How to set up instruments?A1. Click on instrument. Then click on page to drop it.

Q2. How to connect different instruments with cables?A2. On left bottom cornet you will find sign like

From here you can select your cable

Q3. How to set IP Address in any PC/Laptop or Server?A3. Select PC in which you want to set IP Address, Click on it. One menu will open having three tabs: Physical, Config, Desktop.Select Desktop and go to IP Configuration. Here you can set IP Addresses.

Q4. How to set IP Address in Router?A4. Select Router , click on it. One menu will open having three tabs: Physical, Config, CLI. Select Config. Select Interface in which you want to set IP, i.e.FastEthernet4/0.Set IP Address in it & Check the ON check box.

Q5. What to do if Router doesnt have enough Ethernet port to connect?A5. In most of the Routers, It has free physical slots which you can fill up, if you want to connect more devices with Router.Select Router,Select tab Physical,Now on left side there is list of different kind of Ethernet cards whose detail is given in bottom. Select the one you want.Now switch off the Router from the right top side on the picture of router.Now Drag the Ethernet card from right bottom most side and drop it on Routers empty slot.

Switch on the Router again.

Q6. How to Configure RIP in Router?A6. In RIP configuration, You just need to enter the network address of all interface that are directly connected with your Router. In other word, you need to add all the network addresses which you have entered in different Ethernet cards in your router.i.e.You have Router 1.You have configured FastEthernet 4/0 with 192.168.0.1/24FastEthernet 5/0 with 192.168.1.1/24FastEthernet 6/0 with 192.168.2.1/24So for RIPYou need to enter three network addresses192.168.0.0192.168.1.0192.168.2.0

1) One Network(with one PC) One Switch:

Step1: Put one PC & One Generic SwitchStep2: Connect them both with copper straight cableStep3: Open property of My PC >> Desktop >> IP Configure Now set following,IP Address: 192.168.0.1Subnet Mask: 255.255.255.0You Are UP!!!!!!!!

2) Two Network(two PC each) One Switch:

Step1: Put four PC & One Generic SwitchPC0 & PC1 for Network 1 PC2 & PC3 for Network 2Step2: Connect them all with copper straight cableStep3: Set following IP & Mask

PC NameIP AddressSubnet Mask

PC0192.168.0.1255.255.255.0

PC1192.168.0.2255.255.255.0

PC2172.16.0.1255.255.0.0

PC3172.16.0.2255.255.0.0

Try to ping each other and see what happens

Observation: Though they are connected with each other with single switch only PC0&PC1 can communicate with each other and PC2&PC3 can communicate with each other.

Conclusion: For two computers to communicate, they must be in same logical network.

3) Two Network Two Switch One Router:

Step1: Put four PC, One Generic Switch & One Generic RouterPC0 & PC1 for Network 1 PC2 & PC3 for Network 2Step2: Connect them all(Switch & PCs) with copper straight cableStep3: Connect Switches with Router using Fiber CableStep4: Set following IP & Mask


PC0192.168.0.2255.255.255.0

PC1192.168.0.3255.255.255.0

PC2172.16.0.2255.255.0.0

PC3172.16.0.3255.255.0.0

Step5: Set the Routers FastEthernet IP Address in its respective Interface IP Configuration as follow.InterfaceIP AddressSubnet Mask

Cable connected with Switch 0192.168.0.1255.255.255.0



Observation: Two network 192.168.0.0/24 and 172.16.0.0/16 can communicate now. We have not specified(applied) any routing algorithm.

Conclusion: With Router, We can make communication between two different networks. When different networks are connected with only one router then they dont need to use routing algorithm because router knows the all networks and where to send packets.

4) Two Network Two Switch Two Router:

Step1: Put four PC, One Generic Switch & One Generic RouterPC0 & PC1 for Network 1 PC2 & PC3 for Network 2Step2: Connect them all(Switch & PCs) with copper straight cablesStep3: Connect Switches with Router using Fiber CablesStep4: Connect Routers with Fiber CablesStep5: Set following IP & Mask


PC0192.168.0.2255.255.255.0

PC1192.168.0.3255.255.255.0

PC2192.168.1.2255.255.255.0

PC3192.168.1.3255.255.255.0

Step6: Set the Routers FastEthernet IP Address in its respective Interface IP Configuration as follow.

Router 0:InterfaceIP AddressSubnet Mask


Cable connected with Router 1172.16.0.1255.255.255.0




Step7: Add network address in RIP for routing the packets.

Router 0:192.168.0.0172.16.0.0

Router 1:192.168.1.0172.16.0.0


Observation: Two network 192.168.0.0/24 and 192.168.1.0/24 can communicate now. We have to configure routing algorithm (In our case RIP).

Conclusion: With Router, We can make communication between two different networks. When different networks are connected with more than router then we need to use routing algorithm because router has to decide where to send packets.

5) Three Network Three Switch Three Router:

Step1: Put six PC, three Generic Switch & three Generic RouterPC0 & PC1 for Network 1 PC2 & PC3 for Network 2PC4 & PC5 for Network 3Step2: Connect them all(Switch & PCs) with copper straight cablesStep3: Connect Switches with Router using Fiber CablesStep4: Connect Routers with Fiber CablesStep5: Set following IP & Mask


PC0192.168.0.2255.255.255.0

PC1192.168.0.3255.255.255.0

PC2192.168.1.2255.255.255.0

PC3192.168.1.3255.255.255.0

PC4192.168.2.2255.255.255.0

PC5192.168.2.3255.255.255.0

Step6: Set the Routers FastEthernet IP Address in its respective Interface IP Configuration as follow.











Step7: Add network address in RIP for routing the packets.

Router 0:192.168.0.0172.16.0.0

Router 1:192.168.1.0172.16.0.0

Router 2:192.168.2.0172.16.0.0


Observation: Three network 192.168.0.0/24 and 192.168.1.0/24 and 192.168.2.0/24 can communicate now. We have to configure routing algorithm (In our case RIP).

Conclusion: With Routers, We can make communication between many different networks.

THE END

Cisco Packet Tracer tips

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