* Agenda Bashing: Emmanuel Duros (UDcast) * New Charter: Walid Dabbous (Inria) Walid informs the group that two new co-chairs are candidate: Emmanuel Duros and Hidetaka Izumiyama No comments from the group * UDLR Presentation: Emmanuel Duros (UDcast) General presentation on UDLR: history of the WG, description the Link-Layer Tunneling mechanism (LLTM) [rfc 3077], network topologies/hardware which benefit of this mechanism, open issues * Configuration of DVMRP over LLTM: Yann Guinamand (Alcatel Space) Presentation and characteristics of a satellite network topology using LLTM. Configuration of dynamic Multicast routing (DVMRP) on a feed and receivers - Question by Walid Dabbous: will you be moving from DVMRP to another protocol ? - Answer: yes, we are starting to consider PIM-DM * PPPoE over LLTM: Valerie Faineant (FT R&D) Presentation of a satellite network using LLTM. Interest in using the same techno used to deploy ADSL services in a satellite environment. PPPoE works fine over LLTM. Easy to provide satellite connectivity re-using known protocols and administration tools. * IPv6 over LLTM: Izu (JSAT) Presentation of an IPv6 satellite network connecting remote IPv6 network. - Question Walid Dabbous: is the solution described already deployed - Answer: yes, this is solution is currently used within the wide project - Question ???: what about the quality of video/voice due to the narrow bandwidth of the return channel? - Answer Izu: The receivers send back text or low bandwidth voice - Answer Emmanuel: This is common practice, there is now problem to return voice with GSM quality on a 64Kbps link - Question: The solution described brings IPv6 connectivity to IPv4 only domains, is it possible to do the opposite ? - Answer: Yes, there is no problem to do so with UDLR. * Experiment of scalable multicast: Izu (for Hitachi) deployment of a satellite network using LLTM. Use of IGMP proxy protocol in order to provide dynamic multicast routing over remote sites. Use of exponential timers to provide scalable routing. * Security holes: Emmanuel Duros Identify a list of security holes within the LLTM: HELLO msg (sensitive information), stateless tunneling (authentication), and routing protocols (authentication). The group agrees to produce informational RFCs: Yann Guinamand: configuration of DVMRP over a UDL Valerie Faineant: Use of PPPoE over UDLR Izu: IPv6 Emmanuel Duros: Identifying security holes Comment from Jun Murai: terrestrial bandwidth is increasing, and satellite bandwidth is rather stable around 40Mbps. Is the group going to think about the potential bottlenecks regarding the difference of bandwidth between the two medias ? There was an off-line discussion between Abha Ahuja, Rob Coltun and Emmanuel Duros: This question is related to a more general problem and is out of scope of the WG.