Symbol Technologies WS 2000 - Manual (Page 35)

Step 6: Configure WLAN Security
3. Check the Broadcast Key Rotation checkbox to enable or disable the broadcasting
of encryption-key changes to mobile units.
4. 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.
5. 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.
6. Select either the ASCII Passphrase or 128-bit Ke y radio button.
7. If ASCII Passphrase is selected, specify a 8 to 63 character alphanumeric string.
The alphanumeric string allows character spaces. The switch converts the string to a
numeric value.
8. To use the 128-bit Key option, enter 16 hexadecimal characters into each of four
fields.
9. Click the OK button to return to the WLAN security screen.
10. Click the Apply button on the WLAN Security screen to save changes.
Copyright © 2004 Symbol Technologies, Inc. All Rights Reserved 35
WS 2000 Wireless Switch: 1.0 Date of last Revision: March 2004