What are the authentication modes for WEP ?
There are two authentication modes for WEP: Open System Authentication: This is the default mode. All clients are accepted by the AP, and the key is never checked meaning association is always granted. However if your key is incorrect you won’t be able to receive or send packets (because decryption will fail), so DHCP, ping etc. will timeout. Shared Key Authentication: The client has to encrypt a challenge before association is granted by the AP. This mode is flawed and leads to keystream recovery, so it’s never enabled by default. The NetGear Wireless Basics Manual has a good description of WEP Wireless Security including diagrams of the packet flows.
There are two authentication modes for WEP: Open System Authentication: This is the default mode. All clients are accepted by the AP, and the key is never checked meaning association is always granted. However if your key is incorrect you won’t be able to receive or send packets (because decryption will fail), so DHCP, ping etc. will timeout. Shared Key Authentication: The client has to encrypt a challenge before association is granted by the AP. This mode is flawed and leads to keystream recovery, so it’s never enabled by default.
