Ricoh Aficio MP C2050 Operating Instructions Manual page 191

Setting
Phase 1
Encryption Algorithm
Phase 1
Diffie-Hellman Group
Phase 1
Validity Period
Phase 2
Security Protocol
Phase 2
Authentication Algorithm
Phase 2
Encryption Algorithm
Permissions
Phase 2
PFS
Description
Specify the encryption
algorithm to be used in phase
1.
(auto setting)
Select the Diffie-Hellman group
number used for IKE encryption
key generation.
(auto setting)
Specify the time period for
which the SA settings in phase
1 are valid.
Specify the security protocol to
be used in Phase 2.
To apply both encryption and
authentication to sent data,
specify ESP or AH + ESP.
To apply authentication data
only, specify AH.
(auto setting)
Specify the authentication
algorithm to be used in phase
2.
(auto setting)
Specify the encryption
algorithm to be used in phase
2.
(auto setting)
Specify whether to activate
PFS. Then, if PFS is activated,
select the Diffie-Hellman group.
Transmission Using IPsec
Setting Value
• DES
• 3DES
• 1
• 2
• 14
Set in seconds from 300 sec. (5
min.) to 172800 sec. (48 hrs.).
• ESP
• AH
• AH + ESP
• HMAC-MD5-96
• HMAC-SHA1-96
• Cleartext (NULL
encryption)
• DES
• 3DES
• AES-128
• AES-192
• AES-256
• Inactive
• 1
• 2
7
189