1. 1 © 2003, Cisco Systems, Inc. All rights reserved. CCNA 2 v3.0 Module 1 WANs and Routers

2. 222 © 2003, Cisco Systems, Inc. All rights reserved. Objectives WANs Routers

3. 333 © 2003, Cisco Systems, Inc. All rights reserved. Introduction to WANs A wide-area network (WAN) is a data communications network spanning a large geographic area such as a state, province, or country.

4. 444 © 2003, Cisco Systems, Inc. All rights reserved. WAN Devices

5. 555 © 2003, Cisco Systems, Inc. All rights reserved. WAN Services

6. 666 © 2003, Cisco Systems, Inc. All rights reserved. Data Link Encapsulations

7. 777 © 2003, Cisco Systems, Inc. All rights reserved. Internal Configuration Components

8. 888 © 2003, Cisco Systems, Inc. All rights reserved. Routers Connected by WAN Technologies

9. 999 © 2003, Cisco Systems, Inc. All rights reserved. Network Layer Path Determination

10. 10 © 2003, 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 routing Switching

11. 11 © 2003, 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.

12. 12 © 2003, Cisco Systems, Inc. All rights reserved. Router Internal Components

13. 13 © 2003, Cisco Systems, Inc. All rights reserved. Router Internal Components

14. 14 © 2003, Cisco Systems, Inc. All rights reserved. Internal Components of a 2600 Router

15. 15 © 2003, Cisco Systems, Inc. All rights reserved. External Connections on a 2600 Router

16. 16 © 2003, Cisco Systems, Inc. All rights reserved. Router External Connections

17. 17 © 2003, Cisco Systems, Inc. All rights reserved. Computer or Terminal Console Connection

18. 18 © 2003, Cisco Systems, Inc. All rights reserved. Modem Connection to Console or Auxiliary Port

19. 19 © 2003, Cisco Systems, Inc. All rights reserved. Connecting Console Interfaces 1.Configure terminal emulation software on the PC for the following: The appropriate com port 9600 baud 8 data bits 1 stop bit No parity 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.

20. 20 © 2003, Cisco Systems, Inc. All rights reserved. Connecting LAN Interfaces

21. 21 © 2003, Cisco Systems, Inc. All rights reserved. Router Serial WAN Connectors

22. 22 © 2003, Cisco Systems, Inc. All rights reserved. DCE Serial Connections