Ricoh Aficio MP C2050 Operating Instructions Manual page 193

Setting
SPI (Output)
SPI (Input)
Security Protocol
Authentication Algorithm
Authentication Key
Encryption Algorithm
Description
Specify the same value as your
transmission partner's SPI input
value.
Specify the same value as your
transmission partner's SPI
output value.
To apply both encryption and
authentication to sent data,
specify ESP or AH + ESP.
To apply authentication data
only, specify AH.
Specify the authentication
algorithm.
Specify the key for the
authentication algorithm.
Specify the encryption
algorithm.
Transmission Using IPsec
Setting Value
the beginning point as you set
in "Local Address".
Any number between 256 and
4095
Any number between 256 and
4095
• ESP
• AH
• AH + ESP
• HMAC-MD5-96
• HMAC-SHA1-96
Specify a value within the
ranges shown below,
according to the encryption
algorithm.
Hexadecimal value
0-9, a-f, A-F
• If HMAC-MD5-96, set
32 digits
• If HMAC-SHA1-96, set
40 digits
ASCII
• IF HMAC-MD5-96, set
16 characters
• If HMAC-SHA1-96, set
20 characters
• Cleartext (NULL
encryption)
• DES
• 3DES
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