Setting Description Setting value
Security Protocol
To apply both
encryption and
authentication to sent
data, specify "ESP" or
"ESP+AH".
To apply
authentication data
only, specify "AH".
• ESP
• AH
•
ESP+AH
Authentication
Algorithm
Specify the
authentication
algorithm.
• HMAC-MD5-96
• HMAC-SHA1-96
•
HMAC-SHA256-128
• HMAC-SHA384-192
• HMAC-SHA512-256
Authentication Key
Specify the key for
the authentication
algorithm.
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
• If HMAC-SHA256-128, set 64 digits
• If HMAC-SHA384-192, set 96 digits
• If HMAC-SHA512-256, set 128 digits
ASCII
• IF HMAC-MD5-96, set 16 characters
• If HMAC-SHA1-96, set 20 characters
• If HMAC-SHA256-128, set 32 characters
• If HMAC-SHA384-192, set 48 characters
• If HMAC-SHA512-256, set 64 characters
5. Enhanced Network Security
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