1. LAN Connections

2. Exploring the Functions of Routing
A router provides connectivity between two logical networks. Every router in Packet Tracer can be switched on or off by using the provided power button
The power switch is required to make a device simulate its real counterpart.
Cisco 1841: This is an Integrated Service Router (ISR) having two Fast Ethernet ports, two slots for High Speed WAN Interface Cards (HWICs), and one slot for Advanced Integration Module (AIM)

3. Cont…
Cisco 1941: This is similar to the previous model but runs on Cisco IOS Version 15. It has two ports that operate at Gigabit Ethernet speeds.
Cisco 2620XM: This is a multiservice router with one Fast Ethernet port, two slots for WAN Interface cards, and one slot for AIM.
Cisco 2621XM: This is similar to the previous model, except that this router has two Fast Ethernet ports.
Cisco 2811: This ISR comes with two Fast Ethernet ports, four WIC slots, and a dual slot for AIM.
Cisco 2901: This router has two Gigabit Ethernet ports, four WIC slots, and two Digital Signal Processor (DSP) slots. This router uses Cisco IOS Version 15.
Cisco 2911: This router has three Gigabit Ethernet ports and all the other features of the previous router. It runs on IOS Version 15.
Generic Router-PT: This is a custom router running on Cisco IOS. It contains 10 slots and has separate modules with a naming convention beginning with PT.

4. Router
The power switch is on the right-hand side of each device, with a green LED indicating that the power is on. Click on this switch to turn it off.

5. The Console port Follow the steps to configure the console port:
Add a PC or a laptop to the workspace.
Choose connections, and then click on the console cable.
Connect the console cable of the network device to the RS-232 port of the PC/laptop
Open the PC/laptop, navigate to the Desktop tab, open Terminal, and then with the default settings, click on OK to view the console. The following screenshot displays a router's console through its terminal:

7. Configuring network devices

8. Cont…..
From the Config tab of the switch, we will set the Interface option to FastEthernet0/1 and uncheck the On checkbox for Port Status. So the Equivalent IOS Commands section displays the following command to achieve this process:
Switch>enable
Switch#configure terminal
Switch(config)#interface FastEthernet0/1
Switch(config-if)#shutdown
Using the Config tab, the following can be configured:
Global settings
Routing (on a router and a layer 3 switch)
VLAN database (on a switch)
Interface settings

13. To enter the privilage mode we use ( enable ) :

14. To see the commands in privilage mode we use (?) :

15. To manage the system clock we use ( clock ) :

16. To see the time we use ( show clock ) :

17. To see what inside DRAM: running configuration we use ( show ) :

18. To see what inside NVRAM : start up configuration we use ( show ) :

19. To go to global configuration we use ( conf t ) :

20. Passwords : 1- Lone console password to protect the user mode :

21. 2- Enable password to protect the privilage mode :
3- Secret password for more protection of privilage mode ( more priority than enable pass and it's encrypted pass .

22. To change the host name of router :

23. Using packet tracer in addressing :
1- We connet the figure .
The cables used are :
Straight : between switch, pc and router, switch.
Cross : between switch, switch .
Serial : betweeen the two routers .

25. 2- We put the IP address for each device as the following : We have in the figure 3 networks :

26. To disrtribute the Ip's on the router interfaces we do the following :

27. To make sure of the IP :

29. For the second router :

30. Now we notice that all points in the figure became green :

31. How to ping on default gate way : For PC0 :

32. We chose command promt and ping on the default gateway :