Motorola WS5100 manual •1011121314151617 •18191A1B1C1D1E1F

4-44WS5100 Series Switch System Reference Guide

5.Select the Broadcast Key Rotation checkbox to enable the broadcasting of encryption-key changes to MUs.

Only broadcast key changes when required by associated MUs to reduce the transmissions of sensitive key information. This value is enabled by default.

6.Refer to the Update broadcast keys every field to specify a time period (in seconds) for broadcasting encryption-key changes to MUs.

Set key broadcasts to a shorter time interval (at least 60 seconds) for tighter security on the WLAN's wireless connections. Set key broadcasts to a longer time interval (at most, 86400 seconds) to extend the key times for wireless connections. Default is 7200 seconds.

7.Configure the Key Settings field as needed to set an ASCII Passphrase and key values.

ASCII Passphrase	To use an ASCII passphrase (and not a hexadecimal value), select the checkbox and enter an
	alphanumeric string of 8 to 63 characters. The alphanumeric string allows character spaces.
	The switch converts the string to a numeric value. This passphrase saves the administrator
	from entering the 256-bit key each time keys are generated.
256-bit Key	To use a hexadecimal value (and not an ASCII passphrase), select the checkbox and enter 16
	hexadecimal characters into each of the four fields displayed.

Default (hexadecimal) 256-bit keys for WPA/TKIP include:

•1011121314151617

•18191A1B1C1D1E1F

•2021222324252627

•28292A2B2C2D2E2F