LAWN

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					    LAWN
      Ron Rusnak
r-rusnak@uchicago.edu




                                    The University of Chicago
                        Networking Services and Information Technologies
                     LAWN
       Local Area Wireless/Walkup Network
                    Architecture
    – Georgia Tech
    – John Douglas & Team
      (john.douglas@oit.gatech.edu)
   Implementation = MOWER
    – Mobile Object/Wireless Enabled Router


                                                  The University of Chicago
                                      Networking Services and Information Technologies
                    MOWER
   Authenticated Router
    – Linux 2.4 Kernel w/IPTables
   Services on router
    – DHCP
    – Firewall (Authenticated Router)
    – Cache DNS
    – Web Server
    – Access Control
                                                The University of Chicago
                                    Networking Services and Information Technologies
                  MOWER
   UofC mods
    – Ported to Solaris 5.8
    – Access Control = IPF
    – Ph/LDAP Authentication
    – Temporary ID capability
    – Use DHCP messages for pruning




                                              The University of Chicago
                                  Networking Services and Information Technologies
                        LAWN
   Advantages
    – Moderate Implementation Effort
    – Users can authenticate with browser
    – Ability to customize authentication
      method
    – Cheap Access Points can be used
   Disadvantages
    – Doesn’t scale well
    – Needs large VLANS or lots of MOWERs.
    – Limited Throughput
                                                        The University of Chicago
                                            Networking Services and Information Technologies

				
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posted:8/25/2012
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