Download US Robotics USR2450 Technical information

WAP Protocol Layers
Applicaiton
Wireless Application Environment (WAE)
Session
Wireless Session Protocol (WSP)
Transaction
Wireless Transaction Protocol (WTP)
Security
Wireless Transport Layer Security (WTLS)
Transport
Network
V 2.2 Copyright SystemExperts 2001,2002,2003
Wireless Datagram Protocol
(WDP)
UDP
Bearers
(GSM, SMS, CDMA, CDPD, GPRS, etc.)
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The Gap in WAP
n
Not to be confused with WAP Gap
n
n
…which is hundreds of millions of devices
that are NOT using WAP
What is the Gap in WAP?
n
n
n
WAP handset to WAP server handled by WTLS
WAP server to Internet handled by SSL
Once decrypted by WTLS, data is exposed until it is
re-encrypted by SSL
n
this of service providers, like PalmNet
V 2.2 Copyright SystemExperts 2001,2002,2003
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