1. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Cisco Certified Network Associate CCNA 640-802 Access the WAN Asst.Prof. It-arun Pitimon itarun.p@cpe.rmutt.ac.th

2. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 2 Agenda  Services in a Converged WAN  Point-to-Point Protocol  Frame Relay  Enterprise Network Security  Access Control Lists  Providing Teleworker Services  Implementing IP Addressing Services

3. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 3 SERVICES IN A CONVERGED WAN

4. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 4 Describe How ECNM Provides Integrated Services over an Enterprise Network  Explain the purpose and function of WANs

5. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 5 Modules in the Enterprise Architecture The Cisco Enterprise Architecture consists of modules representing focused views that target each place in the network. Each module has a distinct network infrastructure with services and network applications that extend across the modules.

6. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 6 Example topology

7. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 7 Describe the Key WAN Technology Concepts  Describe WAN functions in terms of the OSI Reference Model

8. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 8 Describe the Key WAN Technology Concepts  Describe the key WAN data link layer protocols used in today’s Enterprise WAN networks

9. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 9 Select the Appropriate WAN Technology to meet ECNM Requirements  List the various options for connecting subscribers to the WAN

10. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 10 SERIAL POINT TO POINT LINKS POINT-TO-POINT PROTOCOL (PPP)

11. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 11 DTE and DCE

12. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 12 HLDC Frame Format

13. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 13 Describe the Fundamental Concepts of Point-to-Point Serial Communication  Explain when and how to configure HDLC encapsulation on a router

14. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 14 Describe Point-to-Point Concepts  Describe PPP in terms of its use in WAN links

15. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 15 PPP architecture

16. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 16 PPP Configuration Options

17. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 17 FRAME RELAY

18. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 18 Describe the Fundamental Concepts of Frame Relay Technology  Describe how Frame Relay is used to provide WAN services to the Enterprise

19. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 19 Describe the Fundamental Concepts of Frame Relay Technology  Describe how Frame Relay uses virtual circuits to carry packets from one DTE to another

20. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 20 Describe the Fundamental Concepts of Frame Relay Technology  Describe the types of topologies that are used for implementing Frame Relay in different environments

21. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 21 Describe the Fundamental Concepts of Frame Relay Technology  Describe how a router attached to a Frame Relay network uses LMI status messages and inverse ARP queries to map VCs to layer 3 network IP Addresses

22. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 22 Configure a Basic Frame Relay PVC  Configure a basic Frame Relay PVC on a router serial interface

23. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 23 Configure a Basic Frame Relay PVC  Configure a static Frame Relay map

24. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 24 Describe Advanced Concepts of Frame Relay Technology  Explain the reachability issues associated with the Frame Relay NBMA topology

25. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 25 Describe Advanced Concepts of Frame Relay Technology  Describe how to implement bandwidth control in the Frame Relay technology

26. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 26 Configure an Advanced Frame Relay PVC  Explain the steps to configure point-to-point subinterfaces on a physical interface

27. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 27 ACCESS CONTROL LISTS

28. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 28 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network  Explain how a packet filter allows or blocks traffic

29. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 29 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network  Use a flow chart to show how ACLs operate

30. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 30 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network  Explain how to configure a standard ACL

31. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 31 Configure Extended ACLs in a Medium- Size Enterprise Branch Office Network  Describe how to configure extended ACLs

32. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 32 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network  Describe how to use wildcard masks with ACLs

33. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 33 Explain How ACLs are Used to Secure a Medium-Size Enterprise Branch Office Network  Describe where ACLs should be placed in a network

34. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 34 Configure Extended ACLs in a Medium- Size Enterprise Branch Office Network  Describe how to apply an extended ACL to an interface

35. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 35 Configure Standard ACLs in a Medium- Size Enterprise Branch Office Network  Explain how to create a named ACL

36. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 36 IMPLEMENTING IP ADDRESSING SERVICES

37. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 37 Configure DHCP in an Enterprise Branch Network  Describe the function of DHCP in a network

38. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 38 Configure DHCP in an Enterprise Branch Network  Describe how DHCP dynamically assigns an IP address to a client

39. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 39 Configure DHCP in an Enterprise Branch Network  Describe how to configure a DHCP server

40. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 40 Configure DHCP in an Enterprise Branch Network  Explain how DHCP Relay can be used to configure a router to relay DHCP messages when the server and the client are not on the same segment

41. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 41 Configure NAT on a Cisco Router  Describe the operation and benefits of using private and public IP addressing

42. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 42 Configure NAT on a Cisco Router  Explain the key features of NAT and NAT overload

43. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 43 Configure NAT on a Cisco Router  Explain the advantages and disadvantages of NAT

44. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 44 Configure New Generation RIP (RIPng) to use IPv6  Describe the format of the IPv6 addresses and the appropriate methods for abbreviating them

45. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 45 Configure New Generation RIP (RIPng) to use IPv6  Explain the various methods of assigning IPv6 addresses to a device

46. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 46 Configure New Generation RIP (RIPng) to use IPv6  Describe the transition strategies for implementing IPv6

47. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 47 Configure New Generation RIP (RIPng) to use IPv6  Describe how Cisco IOS dual stack enables IPv6 to run concurrently with IPv4 in a network

48. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 48 Configure New Generation RIP (RIPng) to use IPv6  Describe the concept of IPv6 tunneling

49. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 49 Configure New Generation RIP (RIPng) to use IPv6  Describe how IPv6 affects common routing protocols, and how these protocols are modified to support IPv6

50. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 50 Configure New Generation RIP (RIPng) to use IPv6  Explain how to configure a router to use IPv6

51. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 51 Configure New Generation RIP (RIPng) to use IPv6  Explain how to configure and verify RIPng for IPv6

52. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 52 Configure New Generation RIP (RIPng) to use IPv6  Explain how to verify and troubleshoot IPv6

53. © 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 53