Netgear FVM318 FVM318 Reference Manual - Page 142
b Authentication, Shared Key Steps
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Reference Manual for the Model FVM318 Cable/DSL ProSafe Wireless VPN Security Firewall This process is illustrated in below. 802.11b Authentication Shared Key Steps 1) Authentication request sent to AP Access Point 2) AP sends challenge text Client 3) Client encrypts attempting challenge text and to connect sends it back to AP Cable/DSL ProSafeWirelessVPN Security Firewall PWR TEST IN TER N ET LNK W LA N LO CA L MODEL FVM318 100 ACT Enable LNK/ACT 1 2 3 4 5 6 7 8 Cable or DLS modem 4) AP decrypts, and if correct, authenticates client 5) Client connects to network Figure 8-5: 802.11b shared key authentication Overview of WEP Parameters Before enabling WEP on an 802.11b network, you must first consider what type of encryption you require and the key size you want to use. Typically, there are three WEP Encryption options available for 802.11b products: 1. Do Not Use WEP: The 802.11b network does not encrypt data. For authentication purposes, the network uses Open System Authentication. 2. Use WEP for Encryption: A transmitting 802.11b device encrypts the data portion of every packet it sends using a configured WEP Key. The receiving 802.11b device decrypts the data using the same WEP Key. For authentication purposes, the 802.11b network uses Open System Authentication. 3. Use WEP for Authentication and Encryption: A transmitting 802.11b device encrypts the data portion of every packet it sends using a configured WEP Key. The receiving 802.11b device decrypts the data using the same WEP Key. For authentication purposes, the 802.11b network uses Shared Key Authentication. Note: Some 802.11b access points also support Use WEP for Authentication Only (Shared Key Authentication without data encryption). The FVM318 does not support this option. B-16 Network, Routing, Firewall, and Wireless Basics
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