Motorola WS2000 - Wireless Switch - Network Management Device System Reference Manual page 94

5-12 WS2000 Wireless Switch System Reference Guide
networks and small-business environments where more wireless traffic allows quicker discovery of
encryption keys by an unauthorized person.
WPA's encryption method is Temporal Key Integrity Protocol (TKIP). TKIP addresses WEP weaknesses with a
re-keying mechanism, a per-packet mixing function, a message integrity check, and an extended initialization
vector. WPA/WPA2 also provides strong user authentication that is based on 802.1x EAP.
1. Select the WPA/WPA2-TKIP
Integrity Protocol (TKIP).
2. To use WPA/WPA2-TKIP encryption with
selection, click the
settings.
3. To Enable WPA2 check the
4. If using WPA2 in conjunction with 802.1x EAP authentication you may enable
Opportunistic Key Caching
5. Check the Broadcast Key Rotation
changes to mobile units.
6. Specify a time period in seconds for broadcasting encryption-key changes to mobile units. Set key
broadcasts to a shorter time interval (at least 300 seconds) for tighter security on this WLAN's wireless
connections. Set key broadcasts to a longer time interval (at most, 80,000 seconds) to relax security on
wireless connections.
A Pre-Shared Key (PSK) is an Internet Protocol security (IPSec) technology that uses a shared, secret key for
authentication in IPSec policy. IPSec is a set of industry-standard, cryptography-based protection services
and protocols. IPSec protects all protocols in the TCP/IP protocol suite and Internet communications by using
Layer Two Tunneling Protocol (L2TP). Use pre-shared key authentication only in a WLAN environment
intended for relaxed security. The administrator can specify the key either as an ASCII passphrase or as a
128-bit key. All WLAN clients must use the same PSK.
7. Select either the
8. If ASCII Passphrase
string allows character spaces. The switch converts the string to a numeric value.
9. To use the 256-bit Key
10.Click the Ok
11.Click the Apply
radio button to enable Wi-Fi Protected Access (WPA) with Temporal Key
WPA/WPA2-TKIP Settings
Use WPA2 checkbox to use WPA2 encryption in conjunction with WPA-TKIP.
by checking the corresponding checkboxes.
checkbox to enable or disable the broadcasting of encryption-key
ASCII Passphrase or
is selected, specify a 8 to 63 character alphanumeric string. The alphanumeric
option, enter 16 hexadecimal characters into each of the four fields.
button to return to the WLAN security screen.
button on the WLAN Security screen to save changes.
802.1x EAP authentication
button to display a sub-screen for key and key rotation
256-bit Key radio button.
or the No Authentication
Pre-Authentication and