Ricoh Aficio MP C4000 Function Guide

Security Level Security Level Features
Since the data is sent in cleartext, data packets are vulnerable to
eavesdropping attacks. Do not select this if you are exchanging
sensitive information.
Authentication and Low Level
Encryption
Select this level if you want to encrypt the data packets as well as
authenticate the transmission partner and prevent unauthorized
packet tampering. Packet encryption helps prevent
eavesdropping attacks. This level provides less security than
"Authentication and High Level Encryption".
Authentication and High Level
Encryption
Select this level if you want to encrypt the data packets as well as
authenticate the transmission partner and prevent unauthorized
packet tampering. Packet encryption helps prevent
eavesdropping attacks. This level provides higher security than
"Authentication and Low Level Encryption".
The following table lists the settings that are automatically configured according to the security level.
Setting Authentication Only
Authentication and Low
Level Encryption
Authentication and High
Level Encryption
Security Policy Apply Apply Apply
Encapsulation
Mode
Transport Transport Transport
IPsec Requirement
Level
Use When Possible Use When Possible Always Require
Authentication
Method
PSK PSK PSK
Phase 1 Hash
Algorithm
MD5 SHA1 SHA1
Phase 1 Encryption
Algorithm
DES 3DES 3DES
Phase 1 Diffie-
Hellman Group
2 2 2
Phase 2 Security
Protocol
AH ESP ESP
7. Enhanced Network Security
186
7

Ricoh Aficio MP C4000 Specifications