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Chapter 5 - Command Line Interface
Example
5.20.6 mic_mode
This command specifies how to calculate the Message Integrity Check (MIC).
Syntax
mic_mode <hardware | software>
• hardware - Uses hardware to calculate the MIC.
• software - Uses software to calculate the MIC.
Default Setting
software
Command Mode
Interface Configuration (Wireless)
Command Usage
• The Michael Integrity Check (MIC) is part of the Temporal Key Integrity Protocol (TKIP)
encryption used in WiFi Protected Access (WPA) security. The MIC calculation is performed in
the AP for each transmitted packet and this can impact throughput and performance. The AP
supports a choice of hardware or software for MIC calculation. The performance of the AP can
be improved by selecting the best method for the specific deployment.
• Using the “hardware” option provides best performance when the number of supported clients is
less than 27.
• Using the “software” option provides the best performance for a large number of clients on one
radio interface.
Throughput may be reduced when the 802.11g interface supports a high number of
clients simultaneously.
Example
5.20.7 wpa-pre-shared-key
This command defines a WiFi Protected Access (WPA/WPA2) Pre-shared-key.
Syntax
wpa-pre-shared-key <hex | passphrase-key> <value>
• hex - Specifies hexadecimal digits as the key input format.
• passphrase-key - Specifies an ASCII pass-phrase string as the key input format.
• value - The key string. For ASCII input, specify a string between 8 and 63 characters. For HEX
input, specify exactly 64 digits.
Command Mode
Interface Configuration (Wireless-VAP)
Command Usage
• To support WPA or WPA2 for client authentication, use the auth command to specify the
authentication type, and use the wpa-preshared-key command to specify one static key.
• If WPA or WPA2 is used with pre-shared-key mode, all wireless clients must be configured with
the same pre-shared key to communicate with the AP’s VAP interface.
Enterprise AP(if-wireless g: VAP[0])#multicast-cipher TKIP
Enterprise AP(if-wireless g)#
Enterprise AP(if-wireless g)#mic_mode hardware
Enterprise AP(if-wireless g)#