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Functions of an integrated access
gateway (Network services)
n
DHCP server for assigning IP addresses to WLAN clients
– Retaining session if user is temporarily out of WLAN coverage
– Detection of session end
n
Policy engine
– Loadable user profiles
– User-specific routing configuration
– Dynamic firewalling rules
n
IP router with NAT engine
– Assignment of private addresses for free services
– Must allow IPSEC connections
WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt
Page 73
© Siemens, 2002
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