1. 1 © 2004, Cisco Systems, Inc. All rights reserved. CCNA 2 v3.1 Module 1 WANs and Routers

2. 222 © 2004, Cisco Systems, Inc. All rights reserved. Introduction to WANs A WAN is a data communications network that spans a large geographic area such as a state, province, or country.

3. 333 © 2004, Cisco Systems, Inc. All rights reserved. WAN Devices

4. 444 © 2004, Cisco Systems, Inc. All rights reserved. WAN Services

5. 555 © 2004, Cisco Systems, Inc. All rights reserved. Data Link Encapsulations

6. 666 © 2004, Cisco Systems, Inc. All rights reserved. Internal Configuration Components

7. 777 © 2004, Cisco Systems, Inc. All rights reserved. Routers Connected by WAN Technologies

8. 888 © 2004, Cisco Systems, Inc. All rights reserved. Path Determination

9. 999 © 2004, Cisco Systems, Inc. All rights reserved. Internetwork Routers Any internetwork must include the following: Consistent end-to-end addressing Addresses that represent network topologies Best path selection Dynamic or static routing Switching

10. 10 © 2004, Cisco Systems, Inc. All rights reserved. Academy Approach to Labs In the academy lab, all the networks will be connected with serial or Ethernet cables and the students can see and physically touch all the equipment. Devices that make up the WAN cloud are simulated by the connection between the back-to-back DTE-DCE cables.

11. 11 © 2004, Cisco Systems, Inc. All rights reserved. Router Internal Components

12. 12 © 2004, Cisco Systems, Inc. All rights reserved. Router Internal Components

13. 13 © 2004, Cisco Systems, Inc. All rights reserved. Internal Components of a 2600 Router

14. 14 © 2004, Cisco Systems, Inc. All rights reserved. External Connections on a 2600 Router

15. 15 © 2004, Cisco Systems, Inc. All rights reserved. Router External Connections

16. 16 © 2004, Cisco Systems, Inc. All rights reserved. Computer or Terminal Console Connection

17. 17 © 2004, Cisco Systems, Inc. All rights reserved. Modem Connection to Console or Auxiliary Port

18. 18 © 2004, Cisco Systems, Inc. All rights reserved. Console Port Connections 1.Configure terminal emulation software on the PC for the following: The appropriate com port 9600 baud 8 data bits No parity 1 stop bit No flow control 2.Connect a rollover cable to the router console port (RJ-45 connector). 3.Connect the other end of the rollover cable to the RJ-45 to DB-9 adapter 4.Attach the female DB-9 adapter to a PC.

19. 19 © 2004, Cisco Systems, Inc. All rights reserved. Eight-Pin Connections for Cisco 2600 Series Routers

20. 20 © 2004, Cisco Systems, Inc. All rights reserved. WAN Types

21. 21 © 2004, Cisco Systems, Inc. All rights reserved. Router Serial WAN Connectors

22. 22 © 2004, Cisco Systems, Inc. All rights reserved. DCE Serial Connections

23. 23 © 2004, Cisco Systems, Inc. All rights reserved. Summary