US Robotics USR2450 Informacje Techniczne Pobierz pdf (Strona 63)

V 2.2 Copyright SystemExperts 2001,2002,2003

125

IEEE IAPP

n Accomplishes roaming within a subnet

n Basically, within a corporate wireless LAN

n 2 transfer protocols

n 1 for single logical LANs

n 1 for crossing router boundaries

n Crossing subnets is a vendor specific solution

n It requires mobile IP software on every client

n Cisco, e.g., is expected to release Mobile IP

V 2.2 Copyright SystemExperts 2001,2002,2003

126

Wi-Fi Inter-Network Roaming Framework

n Assumptions

n Inter-service roaming

n All components are Wi-Fi certified

n No client footprint other than browser

n RADIUS is the protocol for authentication,

authorization, and accounting data

n Pagers, cell-phones, WAP-phones, and PDAs will

be addressed “later”

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US Robotics USR2450 Informacje Techniczne Strona 63