10 October 2003 Internet2 members meeting 1 An update on the work of JANET Wireless Advisory Group & The Terena Mobility Taskforce James Sankar UKERNA

10 October 2003 Internet2 members meeting 2 Contents Page Background to UKERNA The Current Network – SuperJANET The SuperJANET Development Programme & the JANET Network Access Area JANET Wireless Advisory Group TF-Mobility update Internet 2 members collaboration?

10 October 2003 Internet2 members meeting 3 Current Network - SuperJANET In service – March 2001 Backbone – Supplied by WorldCom (now MCI) Initially 2.5Gbit/s now upgraded to 10 Gbit/s (July 2002)

10 October 2003 Internet2 members meeting 4 JANET Development Programme “…to underpin the development of SuperJANET, evolving over the coming years to support the applications used by the community, which is served by the network.” Network Access Area To widen of access to JANET to allow the migration of the learning process from its traditional base in the classroom, lecture theatre and laboratory, to the home and workplace. To exploit the opening open out of the "local loop" marketplace to enable wider access to JANET. To develop a broad number of activity areas that can enable the widening of access to the JANET network, such as ADSL, Two-way satellite, Wireless, IP over Power, Cable Modem etc. To work with other National Research and Education Networks on network access developments

10 October 2003 Internet2 members meeting 5 JANET Wireless Advisory Group Group formed in May Supported by UKERNA. Initial lifetime of 1 year –will be extended in line with the action plan. Group established and consists of –Higher education –Further education –Industry (suppliers and service providers) Website established /network_access/wireless/wag /wag.html with agenda, minutes and case studies available online. Public mailing list set up –“wireless- Terms of reference agreed Action Plan in draft form and under consultation.

10 October 2003 Internet2 members meeting 6 Mobile Wireless (40% effort) Location Independent Networking (30% effort) Wireless Applications & Services (10% effort) Point to Point / Multipoint Wireless (20% effort) Other Activities One or more end points may change location, such as , UMTS, GPRS, SMS, Bluetooth) Where a user can obtain network access independent of their physical location). Location Based Services & Instant Messaging applications Both end points have a fixed location, such as Fixed Radio and Infrared Services. Monitor commercial & community Wireless network activities. Attend the TF-Mobility meetings. Monitor standards and legislation. JANET Wireless Advisory Group Terms of Reference Key aim: To provide advice and guidance to the JANET community on wireless networking

10 October 2003 Internet2 members meeting 7 What are other Europe NRENs doing? WLAN Policy & best practice in place Scaling wireless LAN infrastructures across existing backbones for national “roaming” solutions Developing interoperable solutions to existing national solutions as part of the Terena TF mobility group, to develop a Europe wide wireless roaming infrastructure amongst participating NRENs

10 October 2003 Internet2 members meeting 8 SURFnet VPN + FCCN University of Bremen & SWITCH Originators of National Roaming solutions across Europe PPPoE over University of Bristol & The University of Swansea Web-based FUNET

10 October 2003 Internet2 members meeting 9 Background TERENA – Trans European Research and Education Networking Association (brings European NRENs together for European projects) TF Mobility (Taskforce) officially began on January –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).

10 October 2003 Internet2 members meeting 10 Requirements definition 1) With minimal administrative overhead (per roaming user) Very little admin work to enable roaming per user Minimize the complexity of additional systems required No n2 work required when scaling system No regulatory entanglement 2) With g ood usability Available to most current WLAN (and wired) users. No additional software required to enable roaming. Enable all (work, guest, home networks, IPv4 and IPv6). 3) Maintaining required security for all partners Allow use only for approved NREN users. Provide accountability but also confidentiality of traffic. Guard against data manipulation and session hijacking. Allow real security (e2e) on top. Don’t aggravate security issues of visited networks. Enable NREN users to use Internet (WLAN and wired) everywhere in Europe

10 October 2003 Internet2 members meeting 11 Cross-domain 802.1X with VLAN assignment (Surfnet) 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. RADIUS server Institution B RADIUS server Institution A Internet Central RADIUS Proxy server Authenticator (AP or switch) User DB Supplicant Guest Student VLAN Guest VLAN Employee VLAN data signalling

10 October 2003 Internet2 members meeting 12 Intranet X Docking network Campus Network G-WiN VPN-Gateways DHCP, DNS, free Web Intranet X Docking network Campus Network G-WiN VPN-Gateways DHCP, DNS, free Web VPN & RADIUS/ PKI SWITCHmobile – VPN solution deployed at 7 universities across Switzerland. Wbone – VPN roaming solution to 4 universities / colleges in state of Bremen. A "virtual campus" initiative in Lisbon, and been testing and developing a VPN & PKI infrastructure.

10 October 2003 Internet2 members meeting 13 RADIUS based Web interface authentication solution Internet Docking Network Access Control Device AAA Server WWW-browser 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

10 October 2003 Internet2 members meeting 14 PPP over Ethernet – University of Bristol nomadic network (with links to the University of Wales)

10 October 2003 Internet2 members meeting 15 TF-Mobility: Current status 1.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. 2.WLAN Product testing matrix – 1 st draft completed 3.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: VPN users will not be able to access a visited institutions VPN gateway because (though possible) offering access to all VPN servers is not be practical as all participating institutions would have to purchase a VPN server for this single purpose. PKI: Good to have when ready, currently it is not and would be complex to manage during the group’s limited lifetime. –An architecture that supports the various national solutions is needed, a three stream approach is recommended…

10 October 2003 Internet2 members meeting 16 Recommendations Define interoperability scenarios for each national solution and identify work needed to integrate these solutions and three development streams together. A phased development / testing approach Resolve scaling and interoperability issues for 802.1x, VPN, web- based redirect,) Consolidate findings into a trial report Build and scale a RADIUS proxy hierarchy for non-VPN AAA Conduct feasibility tests on creating an scalable VPN solution Subject to feasibility, build the proposed CASG solution Extend to VPN in parallel Work on software changes to Roamnode (PPPoE over Linux) to facilitate roaming The testing of inter-NREN roaming solutions has already started !

10 October 2003 Internet2 members meeting 17 SURFnet FCCN FUNET RADIUS proxy hierarchy established (geographic view) RADIUS Proxy servers connecting to a European level RADIUS proxy server University of Southampton (DFN) Participation guidelines are being drafted Aim is to increase membership. Norway, Slovenia, Czech Republic & Greece have indicated their willingness to join. CARnet Findings so far (1) A standard is required for (2) Clear text of authentication details between RADIUS servers can be overcome by using IPSec

10 October 2003 Internet2 members meeting 18 Organizational RADIUS Server Top-level RADIUS Proxy Server Top-level RADIUS Proxy Server Organizational RADIUS Server National RADIUS Proxy Server National RADIUS Proxy Server National RADIUS Proxy Server National RADIUS Proxy Server University of Southampton Currently hosted at SURFnet Currently linked to FCCN, Portugal Currently linked to CARNET, Croatia Backup Top-level RADIUS Proxy Server Backup Top-level RADIUS Proxy Server etlr1.radius.terena.nl ( ) etlr2.radius.terena.nl ( ) Organizational RADIUS Server National RADIUS Proxy Server National RADIUS Proxy Server Organizational RADIUS Server Currently linked to SURFnet, Netherlands National RADIUS Proxy Server National RADIUS Proxy Server Organizational RADIUS Server Currently linked to FUNET, Finland RADIUS proxy hierarchy established (network topology view) National RADIUS Proxy Server National RADIUS Proxy Server Organizational RADIUS Server FOKUS (Berlin) National RADIUS Proxy Server National RADIUS Proxy Server

10 October 2003 Internet2 members meeting 19 Controlled Address Space for VPN Gateways Design and work plan documentation underway. Interoperability tests of VPN to RADIUS proxy hierarchy agreed. The group is considering using RADIUS for backup. Further work to follow.

10 October 2003 Internet2 members meeting 20 Further collaborations??? The TF-Mobility group welcomes participation within Europe and outside of Europe Why not join in and participate with us on –The RADIUS Proxy Hierarchy –The Controlled Address Space for VPN Gateways Contact us, the TF Mobility co-chairs are –James Sankar – –Carsten Bormann - Further Information JANET Wireless Advisory Group JANET Two-way satellite trial The Terena Mobility Task Force

10 October 2003 Internet2 members meeting 21 Thank you for your time Any questions ? James Sankar