VIRTUAL PRIVATE NETWORKING
IMPLEMENTATION FOR SUN INFOSYS LTD.
http://www.suninfosys.co.uk/
EE249 Network Project Preparation
Rashid Yunus Khan
ID: 03020935
Email: rashidkhan@hotmail.com & rak147@londonmet.ac.uk
Web: http://www.rashidkhan.co.uk
Supervisor: Prof Algirdas Pakstas
Supervisor Email: a.pakstas@londonmet.ac.uk
Computing, Communications Technology and Mathematics
London Metropolitan University
166-220 Holloway Road
London
N7 8DB
CONTENTS
• INTRODUCTION...................................
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6
• What the Project is about
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...6
• Organisational Structure
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• THE PROJECT PROPOSAL
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..9
2.1 Background Information on the company
10
2.2 The UNIX based solution
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12
2.3 The Windows Based solution
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13
• THE LITERATURE SEARCH ...................................................................................15
3.1 What is VPN?
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16
3.2 What Makes a VPN?
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17
3.3 Types of VPN
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18
3.4 Remote-Access VPN
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18
3.5 Site-to-Site VPN
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20
3.6 Extranet VPN
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22
3.7 VPN Security
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23
3.8 Firewalls
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24
3.9 Encryption
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25
3.10 IPSec
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26
3.11 AAA Servers
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28
3.12 VPN Technologies
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29
3.13 VPN Concentrator
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29
3.14 VPN-Optimized Router
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30
3.15 Cisco Secure PIX Firewall
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30
3.16 Tunnelling
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30
3.17 Carrier protocol
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31
3.18 Encapsulating protocol
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31
3.19 Passenger protocol
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31
3.20 Tunneling: Site-to-Site
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32
3.21 Tunnelling: Remote-Access
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32
3.22 L2F (Layer 2 Forwarding)
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32
3.23 PPTP (Point-to-Point Tunneling Protocol)
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33
3.24 L2TP (Layer 2 Tunneling Protocol)
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33
3.25 MPLS
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34
• PROJECT PLAN
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....38
4.1 Step1
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38
4.1 Step2
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39
4.1 Step3
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39
• INVESTIGATION AND RESULT
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41
5.1 VPN using hardware based tools and technologies
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.42
5.2 VPN using software based tools and technologies
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.42
5.3 Protocol Selection
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.42
5.4 Performance needs
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..43
5.5 IP Address Planning
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....43
5.6 ISP Evaluation
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.44
5.7 Installing & configuring ISA Server 2000
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..44
• CRITICAL APPRAISAL OF THE WORK DONE
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45
• CONCLUSION
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• SUGGESTIONS FOR FURTHER WORK
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..49
REFERENCES
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APPENDICES
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APPENDIX A Implementation Installing Windows Server 2003
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APPENDIX B Implementation Installing ISA Server 2000
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APPENDIX C Implementation Installing ISA Server Service Pack 1
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74
APPENDIX D Implementation Installing Hotfix isahf255.exe
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.....77
APPENDIX E Implementation Installing Feature Pack 1
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.....80
APPENDIX F Implementation Configuring the ISA Server 2000/VPN Server
...82 APPENDIX G Implementation Connecting to the VPN
....100
ACKNOWLEDGEMENTS
I would like to thank the following people, without their help the completion of this project was not possible.
Special thanks to Peter Chalk, for all this help, guidance and encouragement.
Mr. Sri Adam for letting me implement this project in his organization.
All my friends and family, for their help, support and suggestions.
All the final year BSc. Computer Networking students for their feedback about this report.
Any one who helped me whether knowingly or unknowingly, willingly or unwillingly, directly or indirectly.
