In this school/enterprise Wi-Fi architecture, the Access Gateway (AG) and WiNOC (management and RADIUS server) work together to authenticate wireless users. When a wireless user tries to access the Internet, the AG intercepts the HTTP (HyperText Transfer Protocol) request and redirect him/her to an logon page for entering user name and password information. And then, the entered user name and password information is sent by the AG to a backend RADIUS server (i.e., WiNOC). Network access permissions of the user are granted only if he/she is a valid user of WiNOC. If the APs support the IEEE 802.3af PoE (Power over Ethernet) standard, power can be supplied through Ethernet cables from a PoE hub/switch rather than by alternate current (AC). Therefore, power cabling is not necessary; only Ethernet cabling is needed. Thus cabling costs can be reduced. Another benefit of employing PoE is that when any AP hangs up due to firmware bugs, PoE can be used to restart the AP.
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Latest updated: 2021/09/10