Security Parameters Summary; Table 149 Wireless Security Relational Matrix - ZyXEL Communications Network Device P-2602 User Manual

802.11g wireless adsl2+ voip iad/adsl2+ voip iad
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P-2602H(W)(L)-DxA Series User's Guide
The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data
packets, altering them and resending them. The MIC provides a strong mathematical function
in which the receiver and the transmitter each compute and then compare the MIC. If they do
not match, it is assumed that the data has been tampered with and the packet is dropped.
By generating unique data encryption keys for every data packet and by creating an integrity
checking mechanism (MIC), TKIP makes it much more difficult to decrypt data on a Wi-Fi
network than WEP, making it difficult for an intruder to break into the network.
The encryption mechanisms used for WPA and WPA-PSK are the same. The only difference
between the two is that WPA-PSK uses a simple common password, instead of user-specific
credentials. The common-password approach makes WPA-PSK susceptible to brute-force
password-guessing attacks but it's still an improvement over WEP as it employs an easier-to-
use, consistent, single, alphanumeric password.

Security Parameters Summary

Refer to this table to see what other security parameters you should configure for each
Authentication Method/ key management protocol type. MAC address filters are not
dependent on how you configure these security features.

Table 149 Wireless Security Relational Matrix

AUTHENTICATION
METHOD/ KEY
MANAGEMENT PROTOCOL
Open
Open
Shared
WPA
WPA
WPA-PSK
WPA-PSK
370
ENCRYPTION
ENTER
METHOD
MANUAL KEY
None
No
WEP
No
Yes
Yes
WEP
No
Yes
Yes
WEP
No
TKIP
No
WEP
Yes
TKIP
Yes
ENABLE IEEE 802.1X
No
Enable with Dynamic WEP Key
Enable without Dynamic WEP Key
Disable
Enable with Dynamic WEP Key
Enable without Dynamic WEP Key
Disable
Yes
Yes
Yes
Yes
Appendix E Wireless LANs

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