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Terena Mobility Taskforce update

Terena Mobility Taskforce update. Klaas Wierenga SURFnet <Klaas.Wierenga@SURFnet.nl>. Contents Page. Background Current status Future plans Discussion. Background. TF Mobility (Taskforce) officially began on January 1 2003. The group has an 18 month lifetime.

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Terena Mobility Taskforce update

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  1. Terena Mobility Taskforce update Klaas Wierenga SURFnet <Klaas.Wierenga@SURFnet.nl>

  2. Contents Page • Background • Current status • Future plans • Discussion

  3. Background • TF Mobility (Taskforce) officially began on January 1 2003. • The group has an 18 month lifetime. • Aim: ”coordinating research and testing in Europe regarding real usage and scalability of mobility solutions inside the academic community”. • Mobility solutions are defined as • a way to transfer authentication information between organisations so that a user from different organisation may gain wired or wireless access to 1) the visiting organisation’s network or 2) the visitor’s home network for home authentication and network access. • Work Areas • Identify inter-NREN roaming requirements. • Evaluate current national roaming solutions. • Select inter-NREN solution and test. • Evaluate mobile equipment, technology and next generation mobile technology for handover and roaming (mobile IPv4 & v6).

  4. Requirements definition • Enable NREN users to use the Internet (WLAN and wired) everywhere in Europe with: • Minimal administrative overhead (per roaming user) • Good usability • Maintaining required security for all partners. • Scalable!

  5. AAA Server Access Control Device Internet 4. 3. 5. 1. Docking Network 2. WWW-browser Web-based with RADIUS • RADIUS based Web interface authentication at the University of Tampere The Finnish are scaling their solution by using a hierarchy of RADIUS proxy servers for their national infrastructure

  6. Dockingnetwork Dockingnetwork VPN-Gateways VPN-Gateways Campus Network Campus Network G-WiN G-WiN Intranet X Intranet X DHCP, DNS, free Web DHCP, DNS, free Web • Wbone – VPN roaming solution to 4 universities / colleges in state of Bremen. VPN • SWITCHmobile – VPN solution deployed at 7 universities across Switzerland. • A "virtual campus" initiative in Lisbon, and been testing and developing a VPN & PKI infrastructure. PPPoE – University of Bristol

  7. Cross-domain 802.1X with VLAN assignment Supplicant Authenticator (AP or switch) RADIUS server Institution A RADIUS server Institution B User DB User DB Guest piet@institution_b.nl Internet Guest VLAN Employee VLAN Central RADIUS Proxy server Student VLAN Authentication at home institution, 802.1X , TTLS (SecureW2), (proxy) RADIUS. One time passwords are also transmitted via SMS to guest users. A RADIUS Hierarchy is proposed to scale this to a European wide solution.

  8. Current status • Documentation of national WLAN roaming solutions – complete • Characteristics identified as • 802.1X - “The future”, easy to scale, secure but cutting edge, thus expensive. • VPN - Widely available, expensive, secure & hard to scale. • Web based – cheap, widely available, easy to scale, but not secure. • WLAN Product testing matrix – 1st draft completed • Preliminary selection for inter-NREN roaming – in draft, conclusions are • No national solution meets all the requirements. • The group has chosen not to consider the following • Local VPN access. • PKI • An architecture that supports the various national solutions is needed, a three stream approach is recommended…

  9. Future plans Subject to feasibility, build the proposed CASG solution • Conduct feasibility tests on creating an scalable VPN solution • Resolve scaling and interoperability issues for 802.1x, VPN, web-based redirect, PPPoE) Extend to VPN in parallel Build and scale a RADIUS proxy hierarchy for non-VPN AAA • Consolidate findings into a trial report Work on software changes to PPPoE to facilitate roaming The testing of inter-NREN roaming solutions has already started !

  10. Controlled Address Space for VPN Gateways • Design and work plan documentation underway. • Interoperability tests of VPN to RADIUS proxy hierarchy agreed. • Further work to follow.

  11. FUNET SURFnet (DFN) CARnet Radius proxy hierarchy • Participation guidelines are being drafted • Aim is to increase membership. Spain, Norway, Slovenia, Czech Republic & Greece have indicated their willingness to join. University of Southampton FCCN RADIUS Proxy servers connecting to a European level RADIUS proxy server

  12. Thank you for your time Any questions ? Klaas Wierenga +31 30 2 305 305 Klaas.Wierenga@SURFnet.nl

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