Ricoh Printer Quick Installation Manual page 591

Security Level
Authentication and High Level
Encryption
The following table lists the settings that are automatically configured according to the security level.
Setting Authentication Only
Security
Apply
Policy
Encapsul
ation Transport
Mode
IPsec
Requirem Use When Possible
ent Level
Authentic
ation PSK
Method
Phase 1
Hash MD5
Algorithm
Phase 1
Encryptio
DES
n
Algorithm
Phase 1
Diffie-
2
Hellman
Group
Security Level Features
packet tampering. Packet encryption helps prevent
eavesdropping attacks. This level provides less security than
"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".
Authentication and Low Level
Encryption
Apply
Transport
Use When Possible
PSK
SHA1
3DES
2
Transmission Using IPsec
Authentication and High
Level Encryption
Apply
Transport
Always Require
PSK
SHA1
3DES
2
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