Hi, On Sam, 03 Mär 2007, Freddy Freeloader wrote:
> Q. What are the advantages and disadvantages of Open Authentication? > > *A. *Here are the advantages and disadvantages of Open Authentication: > > *Advantages:* Open Authentication is a basic authentication > mechanism, which you can use with Wireless devices that do not > support the complex authentication algorithms. Authentication in the > 802.11 specification is connectivity-oriented. By design the > requirements for authentication allow devices to gain quick access > to the network. In such a case, you can use Open Authentication. > > *Disadvantages:* Open Authentication provides no way to check if a > client is a valid client and not a hacker client. If you do not use > WEP encryption with Open Authentication, any user who knows the SSID > of the WLAN can access the network. Cisco does not recommend that > you deploy wireless LANs without WEP encryption." They are here refering to RADIUS, so you can connect Usernames and Network Access. Normaly a WEP or WPA-PSK Key grant access to the complete network. With RADIUS or something similar you can grant access by user&password or user&cert which in more complex networks _is_ the better way (simply think of, if there is more than one network segment, or a machine gets stolen... and you want to revoke just one user) -- Florian Reitmeir
