Configuring Access Point Security 6-5
4. Press <ESC> or <Enter> to access the AP-5131 CLI.
A serial connection has now been established and the user should be able to view the serial
connection window.
5. Reset the AP-5131.
An AP-5131 can be reset by removing and re-inserting the LAN cable or removing and re-
inserting the power cable.
As the AP-5131 is re-booting, a “Press esc key to run boot firmware” message displays.
6. Quickly press <ESC>.
If the <ESC> key is pressed within three seconds a boot> prompt displays.
7. Type the following at the boot prompt:
passwd default
8. Reset the AP-5131 by typing the following at the b oot prompt:
reset system
When the AP-5131 re-boots again, the password will return to its default value of “symbol.”
You can now access the AP-5131.
6.3 Enabling Authentication and Encryption Schemes To complement the built-in firewall filters on the WAN side of the AP-5131, the WLAN side of the
AP-5131 supports authentication and encryption schemes. Authentication is a challenge-response
procedure for validating user credentials such as username, password, and sometimes secret-key
information. The AP-5131 provides two schemes for authenticating users: 802.1x EAP and Kerberos.
Encryption applies a specific algorithm to alter its appearance and prevent unauthorized reading.
Decryption applies the algorithm in reverse to restore the data to its original form. Sender and
receiver must employ the same encryption/decryption method to interoperate.
Wired Equivalent Privacy (WEP) is available in two encryption modes: 40 bit (also called WEP 64) and
104 bit (also called WEP 128). The 104-bit encryption mode provides a longer algorithm (better
security) that takes longer to decode (hack) than the 40-bit encryption mode.
CAUTION If the <ESC> key is not pressed within three seconds after the “Press
esc key to run boot firmware” message displays, the AP-5131 will
continue to boot.
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