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Implementing a virtual private network
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (CCSlab)
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (CCSlab)
2007 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Dagens företag vill ge anställda möjlighet att jobba hemifrån eller på resande fot. En vanlig lösning för att möjliggöra detta är virtual private network (VPN). VPN ger en användare tillgång till interna resurser på företaget från ett externt nät, exempelvis via Internet. Detta gör att användare kan komma åt de interna resurserna på ett säkert sätt. Vilken VPN-teknik är då att föredra för att få en så snabb, säker och pålitlig anslutning som möjligt? Detta examensarbete tar upp olika VPN-tekniker.

Vi beskriver vanliga VPN-protokoll som L2TP, IPSec och PPTP. Hur användare autentiseras på ett säkert och smidigt sätt samt metoder att göra sin VPN-anslutning säker. Vi redovisar också den lösning vi har implementerat hos Confidence, för vilka arbetet utfördes. Problemen med att använda de produkter som redan fanns på företaget beskrivs. Förslag på lösningar ges för att lösa dessa problem i framtida arbeten.

Abstract [en]

Companies of today want to give their employees the opportunity to work from home or while they travel. A common solution to accomplish this is to implement a VPN over top of the existing network. Using VPN gives the employees access to the company’s local area network from outside, via the internet. The VPN provides a secure channel for these employees to connect to the local services attached to the company’s network that they need to reach. Which VPN technology is most suitable to deliver a secure, fast, and reliable connection to theses employees? In this thesis examines we are taking a closer look at different VPN solutions.

We describe different VPN-protocols like L2TP, IPSec and PPTP. How to authenticate users in a secure and flexible way and also methods used to make the VPN-connection secure. Lastly we will show the solution we have implemented at the company Confidence, for whom we made the solution. The difficulties in using existing products with the company’s infrastructure are described. Suggestions are offered for future work to address these problems.

Place, publisher, year, edition, pages
2007. , 90 p.
Series
Trita-ICT-COS, ISSN 1653-6347 ; COS/CCS 2007-29
Keyword [en]
VPN, VPN-protokoll, L2TP, PPTP, IPSEC, RADIUS, PPP, NAT-T, VPN-policy
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-91933OAI: oai:DiVA.org:kth-91933DiVA: diva2:511671
Subject / course
Computer Networks
Educational program
Bachelor of Science in Engineering - Computer Engineering
Presentation
2007-12-19, Seminar room Grimeton, Isafjordsgatan 22, Kista, 13:00 (Swedish)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-03-23 Created: 2012-03-22 Last updated: 2013-09-09Bibliographically approved

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CiteExportLink to record
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Citation style
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