Ricoh Aficio SP 5200DN Operation And Use Manual page 643

Security Level
Authentication Only
Authentication and Low Level
Encryption
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
Encapsulati
Transport
on Mode
IPsec
Requireme Use When Possible
nt Level
Authenticati
PSK
on Method
Phase 1
Hash MD5
Algorithm
Security Level Features
Select this level if you want to authenticate the transmission partner
and prevent unauthorized data tampering, but not perform data
packet encryption.
Since the data is sent in clear text, data packets are vulnerable to
eavesdropping attacks. Do not select this if you are exchanging
sensitive information.
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".
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
Transmission Using IPsec
Authentication and High
Level Encryption
Apply
Transport
Always Require
PSK
SHA1
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