Tunnel Broker with OpenVPN

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9 Δεκ 2013 (πριν από 3 χρόνια και 8 μήνες)

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TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
1
Tunnel Broker with OpenVPN
Christian Schild
JOIN Projekt Team
Zentrum für Informationsverarbeitung
Westfälische Wilhelms-Universität Münster
http://www.join.uni-muenster.de
mailto: join@uni-muenster.de
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
2
Why a Tunnel Broker
• Easy solution to provide IPv6 to Dial-In users
(ISDN, xDSL)
• Needed for connectivity within a site (at least
in some places)
• Possible solutions:
– ISATAP
– 6in4
– IPsec
– OpenVPN
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
3
What is OpenVPN?
• OpenVPN is an open source (GPL) VPN solution
• Creates tunneled connections between two or more
nodes
• Uses tun/tap drivers of the OS to create tunnel
• Uses OpenSSL and TLS for authentication,
encryption and key exchange
• Port based connections
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
4
Advantages of OpenVPN
• Available for many platforms (Windows,
Linux, *BSD, Solaris, MacOS)
• Already includes open source security
mechnisms to authenticate users
• Established tunnels are robust against IP
changes
• Easily traverses NAT
• Recent versions (since 1.6-rc3) support IPv6
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
5
JOIN Tunnel Broker
• Scripts that build
– CA
– (DB)
– OpenVPN server
– Create routing entries
– Creates client certificates and scripts (up/down)
• Single host (/128) and multihost (/64)
connections are possible
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
6
Links
• OpenVPN Homepage:
– http://openvpn.sourceforge.net
• JOIN tunnel broker documentation:
– http://www.join.uni-muenster.de?lang=en
•?Documents
•?Howtos
• http://www.join.uni-muenster.de/Dokumente/Howtos/Howto_OpenVPN_Tunnelbroker.php?lang=en
TF-NGN, 10.-11. May 2004, Amsterdam
Christian Schild, JOIN Project Team, WWU Münster
7
Questions?
Contact:join@uni-muenster.de
Homepage:http://www.join.uni-muenster.de