CCNA Discovery 4 - Chapter 8

1,567
-1

Published on

0 Comments
4 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,567
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
4
Embeds 0
No embeds

No notes for slide

CCNA Discovery 4 - Chapter 8

  1. 1. Prototyping the WAN Designing and Supporting Computer Networks – Chapter 8Version 4.0 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objectives Describe the methods to prototype remote connectivity support Prototype the WAN Connectivity Prototype the VPN connectivity for remote workers © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Describe the Methods to Prototype Remote Connectivity Support  Simulation software  Prototype testing using simulated links  Pilot testing in the actual environment © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. Describe the Methods to Prototype Remote Connectivity Support Benefits of using simulation software to test remote connectivity:  Lower overall cost  Flexibility  Scalability  Control © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. Describe the Methods to Prototype Remote Connectivity Support Limitations of using simulation software to test the design:  Limited functionality  Unrealistic performance © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Describe the Methods to Prototype Remote Connectivity Support Simulate WAN connectivity in a prototype lab:  Use Ethernet connection to simulate DSL or cable  Use CSU/DSU, serial modems, or V.35 cables to simulate serial connectivity © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Prototype the WAN Connectivity  Identify business goals and technical requirements from the case study and determine which of these goals and requirements can be tested in the prototype © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Prototype the WAN Connectivity  Create a success criteria checklist to support business goals and technical requirements © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Prototype the WAN Connectivity Determine the elements of the simulated WAN connection:  Simulate the Frame Relay connection using a Cisco router acting as a Frame Relay switch  Simulate a crossover function using V.35 cables  Provide the DCE function with a clock rate © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Prototype the WAN ConnectivityValidate the choice of WAN devices and topologies: Local point-to-point circuit Packet-switched network Remote point-to-point circuit © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Prototype the WAN Connectivity  Configure the router to act as the Frame Relay switch  Configure serial interfaces as DCE devices  Configure Layer 3 addresses and encapsulation type © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Prototype the WAN Connectivity Verify that the Frame Relay WAN operates as expected:  Display the status of the interfaces  Verify the exchange of LMI messages  Display the status of PVCs and the Frame Relay maps © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Prototype the WAN Connectivity Provide and test backup capabilities:  Set up Ethernet connections  Create floating static routes © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Prototype the WAN Connectivity Troubleshoot Layer 1 using the show interface serial command Troubleshoot Layer 2 using the show frame-relay lmi command Check Layer 3 functionality © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Prototype the WAN Connectivity  Identify areas of risk and weakness in the design © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Prototype the VPN Connectivity for Remote Workers Determine which business goals and technical requirements can be tested in the prototype:  VPN security  VPN server location © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Prototype the VPN Connectivity for Remote Workers  Create a success criteria checklist to support business goals and technical requirements © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Prototype the VPN Connectivity for Remote Workers  Verify the use of Cisco EasyVPN to configure a VPN server and set up the client software © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Prototype the VPN Connectivity for Remote Workers  Validate the choice of VPN technology, devices, and topologies © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Prototype the VPN Connectivity for Remote Workers Prototype the Remote Worker Support:  IPSec  Split tunnels © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. Prototype the VPN Connectivity for Remote Workers  Validate the placement of the VPN server and access list filtering in the prototype network © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. Prototype the VPN Connectivity for Remote Workers  Identify risks or weaknesses in the VPN design © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  23. 23. Summary Every Frame Relay link has three components: a local point-to-point circuit, the packet-switched network, and a remote point-to-point circuit. Frame Relay is a nonbroadcast multi-access protocol. One way to configure routers to use a backup link when a primary link fails is to create floating static routes. VPNs have two important components: tunneling and encryption. Encryption algorithms such as DES require a symmetric, shared secret key. IPSec provides data confidentiality, integrity, and authentication at Layer 3. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  24. 24. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 24

×