Laboratory Exercise 1

Transcription

1 I. Objectives - Using RouterSim. - Building a simple LAN. Laboratory Exercise 1 II. Using RouterSim 1. Network Visualizer Screen CCNA Network Visualizer 6.0 Net Visualizer Screen 2. Adding a Device to the Network Visualizer Screen - This program offers several devices that you can interact with in our network layouts or networks that you want to create. Host 1900 Switch - It has twelve 10BaseT switched ports and two FastEthernet switched ports Router - It has Enterprise edition 12.x software. The 2621 has two FastEthernet interfaces and two serial interfaces Router - It has Enterprise edition 12.4 software, 4 serial ports and 2 FastEthernet ports Switch - It has 12 FastEthernet, 10/100 ports to help you build your LANs and VLANs Switch - It has 8 FastEthernet ports and 1 GigabitEthernet port Switch - It has 10 FastEthernet, 10/100 ports Switch - It has 8 FastEthernet ports and 1 GigabitEthernet port. - These devices are represented by device buttons at the top of the Network Visualizer screen: - Description of Toolbar Buttons: New Network Visualizer screen Load a network Save a network Print network layout Clear all devices off the Network Visualizer screen Insert a file into the network. For example, this could be a text file, Microsoft Word file, PDF file, graphic file, etc. Insert a host onto the Network Visualizer screen Page 1

2 Insert a new 2621router onto the Network Visualizer Insert a new 2811 router onto the Network Visualizer Insert a new 1900 switch onto the Network Visualizer Insert a new 2950 switch onto the Network Visualizer Insert a new 2960 switch onto the Network Visualizer Insert a new 3550 switch onto the Network Visualizer Insert a new 3560 switch onto the Network Visualizer Display the Net Assessment window Display the Net Configs window Display the Net Packet Monitor window - To add one or more of any device, click the device button that corresponds to the host, router, or switch. A new object will appear in the left corner of the Network Visualizer Drag and drop it wherever you want. Devices are labeled sequentially. For example, if you click on the 2811 device button, 2811 Router A will appear on the If you click the device button again, 2811 Router B will appear on the The next one would be 2811 Router C, and so on. - Please Note: There is an unlimited amount of devices that can be added to a Network Visualizer You are only limited by your computer resources. 3. Connecting Devices - Once you have placed devices onto Network Visualizer screen, only a couple steps are required to connect them. They need to be connected so that the program knows they are in the same network. All devices must be connected into the same network for you to both configure and test for connectivity. Page 2

3 - In the following example, we will connect serial interface 0/0/0 of the router 2811 A to serial interface 0/0/1 of router 2811 B. - Lab Steps 1. Right-mouse click router 2811 A. A graphical representation of its ports will appear. It will appear on top of router 2811 A. 2. Place your mouse over interface serial 0/0/0 and click your left mouse key. 3. As soon as you click a port, the large graphic disappears and you will see a line attached to the cursor. Move the cursor over to router 2811 B and click the right mouse button. 4. When the graphical representation of the ports for router 2811 B, click on interface serial 0/0/1. 5. The large graphic will disappear and you should see router 2811 A and 2811 B connected with a serial cable. Page 3

4 4. Network Cables This program provides three different types of cables that can be used when creating networks. - Straight-Through - is GREEN in color in our program and provides connectivity from hosts to switches and from routers to switches. This is a twisted-pair cable that uses RJ-45 connectors. - Cross-Over - is WHITE in color in our program and is used to connect switch to switch and router to router on an Ethernet port. This cannot be used to connect hosts to switches or switches to routers. Page 4

5 - Serial WAN - is RED in color in our program and is represented by a lightning bolt. This is used to simulate a serial WAN connection and can only be connected to serial interfaces on a router. These are point-to-point only and can connect from router to router only via their serial ports only. They cannot be used to connect to switches or hosts. WAN connection - a network connection through routers which connects two geographically distanced networks together. It typically connects several local area networks (LANs), usually through the Internet. - Cable Thickness: You can change the thickness of cables used in your network. On the Network Visualizer menu, click the View menu, put your mouse over the menu item Line Thickness, and then select one of the three levels of line thickness. Page 5

6 - Here is a network that is displays the smallest thickness of cables. - Here is a network that displays the largest thickness of cables. Page 6

7 5. Disconnecting Devices - Any network cable can be disconnected. If you want to remove several cables from a device, you will need to do so, one by one. In the following example, we will disconnect the serial cable between router 2811 A and router 2811 B. - Lab Steps 1. Place your cursor over router 2811 A and click your right mouse button. 2. Place your cursor above the cable connector for interface serial 0/0/0 and click your left mouse button. 3. You will be asked to confirm you removing the cable from the port. Click the Yes button. 4. The cable will now be removed and you will have two disconnected routers. 6. Entering Configurations and Changing Console Screens Page 7

8 - Configurations are entered through a console Only one console screen displays at a time, however, you can display a separate console screen for any router or switch in your network. - Lab Steps 1. Place a couple 2811 routers onto a Network Visualizer 2. Place your cursor over router 2811 A and double-click you left mouse button. A console screen will appear. 3. When you first start out with a network you will need to press enter to display the user mode. From there you can change modes and enter configurations, ping, telnet, and perform show commands. 4. Type enable and press enter to go to the priviledged mode. 5. Type config t and press enter so that you can enter global configuration mode. You will enter your configurations in this mode and in other modes such as interface mode. Page 8

9 - Changing Console Screens: You can use the menu system on the console screen to view the consoles for any device on the Network Visualizer In the following example we have a 3550 and 3560 switch on the Network Visualizer - In this example you want to go from the console of the 3550 A switch, to the console of the 3560 A switch. Click View on the menu, put your mouse over Console, go down and find the desired type of device (in this case it is Switch 3560), and then choose 3560 Switch A. Page 9

10 7. Clearing A Network Visualizer Screen - There are two ways to clear a Network Visualizer - Click the Edit menu and then select Clear. - You can also click the trash can icon on the tool bar. - You will be asked to confirm that you want to clear the current network layout. 8. Network Configurations Window - You can view the configurations for all devices on your Network Visualizer To view the Network Configs screen, click the Tools menu, and then Net Configs. - Or click the Net Configs button on button bar. Page 10

11 - And the Net Configs screen will appear... - Password Lookups: You may forget passwords that you enter while configuring devices. You can look them up by clicking the Net Configs button. - Please Note: You can display the console screen for any device listed in the Net Configs window. Double-click on the name of any device. Page 11

12 III. Building a Simple LAN 1. Network Layout 2. Lab Steps - Need one Cisco Switch and three hosts. - Connect the Devices. - Configure the hosts. - Verify connectivity with ping command. -THE END- Page 12