Multicast-Cipher - HP procurve 420 Management And Configuration Manual

Example
HP420(if-wireless g)#max-association 32
HP420(if-wireless g)#

multicast-cipher

This command defines the cipher algorithm used for broadcasting and multi-
casting when using Wi-Fi Protected Access (WPA) security.
Syntax
multicast-cipher <AES | TKIP | WEP>
AES - Advanced Encryption Standard
•
• TKIP - Temporal Key Integrity Protocol
WEP - Wired Equivalent Privacy
•
Default Setting
WEP
Command Mode
Interface Configuration (Wireless)
Command Usage
• WPA enables the access point to support different unicast encryption
keys for each client. However, the global encryption key for multicast
and broadcast traffic must be the same for all clients. This command
sets the encryption type that is supported by all clients.
• If any clients supported by the access point are not WPA enabled, the
multicast-cipher algorithm must be set to WEP.
• WEP is the first generation security protocol used to encrypt data
crossing the wireless medium using a fairly short key. Communicating
devices must use the same WEP key to encrypt and decrypt radio
signals. WEP has many security flaws, and is not recommended for
transmitting highly sensitive data.
• TKIP provides data encryption enhancements including per-packet
key hashing (i.e., changing the encryption key on each packet), a
message integrity check, an extended initialization vector with
sequencing rules, and a re-keying mechanism.
TKIP defends against attacks on WEP in which the unencrypted
initialization vector in encrypted packets is used to calculate the WEP
key. TKIP changes the encryption key on each packet, and rotates not
Command Line Reference
Interface Commands
6-73