User's Manual

Overview of the Controller, Access Points and Convergence Software solution
hwc_intro.fm
Controller, Access Points and Convergence Software and your network
A31003-W1050-U100-2-7619
, March 2008
24 HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide
• Zone Integrity – The Zone integrity server enhances network security by
ensuring clients accessing your network are compliant with your security
policies before gaining access. Zone Integrity Release 5 is supported.
• HiPath HiGuard – Provides continuous active intrusion detection and
prevention capabilities. For more information, see the HiPath HiGuard
documentation.
2.3.1 Network traffic flow
Figure 3 illustrates a simple configuration with a single HiPath Wireless Controller
and two Wireless APs, each supporting a wireless device. A RADIUS server on
the network provides authentication, and a DHCP server is used by the Wireless
APs to discover the location of the HiPath Wireless Controller during the initial
registration process. Network inter-connectivity is provided by the infrastructure
routing and switching devices.
Figure 3 Traffic Flow diagram
Packet transmission
Control and Routing
>HWC authenticates wireless user
>HWC forwards IP packet to wired
network
Tunnelling
>AP sends data traffic to HWC
through UDP tunnel called CTP
>HWC controls Wireless AP
through CTP tunnel
>Using WASSP tunnels, HWC
allows wireless clients to roam to
Wireless APs on different HWCs
802.11 packet transmission
802.11 beacon and probe, wireless
device associates
with a Wireless AP
by its SSID
Wireless Devices
Router
HiPath Wireless
Controller
RADIUS
Authentication
Server
External
CP Server
External Web
Authentication
Server
Wireless APs
DHCP
Server