D-Link DWS-1008 Product Manual - Page 300
Ways a Switch Can Use EAP, Effects of Authentication Type on Encryption Method
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Ways a Switch Can Use EAP Network users with 802.1X support cannot access the network unless they are authenticated. You can configure a DWS-1008 switch to authenticate users with EAP on a group of RADIUS servers and/or in a local user database on the switch, or to offload some authentication tasks from the server group. The list below details these three basic authentication approaches. Passthrough - An EAP session is established directly between the client and RADIUS server, passing through the switch. User information resides on the server. All authentication information and certificate exchanges pass through the switch or use client certificates issued by a certificate authority (CA). In this case, the switch does not need a digital certificate, although the client might. Local - The switch performs all authentication using information in a local user database configured on the switch, or using a client-supplied certificate. No RADIUS servers are required. In this case, the switch needs a digital certificate. If you plan to use the EAP with Transport Layer Security (EAP-TLS) authentication protocol, the clients also need certificates. Offload - The switch offloads all EAP processing from a RADIUS server by establishing a TLS session between the switch and the client. In this case, the switch needs a digital certificate. When you use offload, RADIUS can still be used for non-EAP authentication and authorization. EAP-TLS cannot be used with offload. Effects of Authentication Type on Encryption Method Wireless users who are authenticated on an encrypted service set identifier (SSID) can have their data traffic encrypted by the following methods: • Wi-Fi Protected Access (WPA) encryption • Non-WPA dynamic Wired Equivalent Privacy (WEP) encryption • Non-WPA static WEP encryption The authentication method you assign to a user determines the encryption available to the user. Users configured for EAP authentication, MAC authentication, Web, or last-resort authentication can have their traffic encrypted as follows: EAP Authentication WPA encryption Dynamic WEP encryption MAC Authentication Static WEP No encryption (if SSID is unencrypted) Last-Resort Static WEP No encryption (if SSID is unencrypted) WebAAA Static WEP No encryption (if SSID is unencrypted) Wired users are not eligible for the encryption performed on the traffic of wireless users, but they can be authenticated by an EAP method, a MAC address, or a Web login page served by the switch. D-Link DWS-1008 User Manual 281
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