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Network Security White Paper ver. G.1.2
Page 32 of 72
Scenario 2:
Standard security settings:
WEP
We recommend making regular changes to the PSK.
Scenario 3:
High security settings:
WPA-PSK/WPA2-PSK
Scenario 4:
Very high security settings:
WPA (802.1X)/WPA2 (802.1X) instead of WPA-PSK/WPA2-PSK.
Please refer to the Appendix section entitled “Wireless LAN Settings” for an explanation of how to
configure these settings.
2-2 IPsec
2-2-1 Overview
Internet Protocol Security (IPsec) is a suite of protocols which provides secure communication over the
network layer. IPsec provides authentication, data integrity, and protection against replay attacks. Unlike
SSL which functions between the application and transport layers, IPsec functions in the network layer.
The products can offer the following header extensions.
AH
Authentication, integrity (IP header and the payload).
No encryption.
ESP
Authentication, encryption, (payload only)
AH+ESP
Authentication, encryption, (IP header and the payload)
The Ricoh implementations for the encryption and authentication algorithm are: