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[IKE Mode]
The mode used for the key exchange protocol is displayed. Normally select the main mode.
●
Select the aggressive mode when the IP address is not fixed. Note that security is lower in the aggressive
mode than in the main mode.
[AUTH Method]
Select [Pre-Shared Key Method] or [Digital Signature Method] for the method used when authenticating the
machine.
●
When the aggressive mode is selected in [IKE Mode], the [Pre-Shared Key Method] setting does not
encrypt the shared key.
[Authentication/Encryption Algorithm]
To automatically set the algorithm that is used for key exchange, select the [Auto] check box. If you select the
check box, the algorithm is set as shown below.
[Authentication]
[Encryption]
[DH Group]
To manually set the algorithm, clear the check box and select the algorithm.
[Authentication]
[Encryption]
[DH Group]
Using [Pre-Shared Key Method] for authentication
1
Select [Pre-Shared Key Method] for [AUTH Method] and click [Shared Key Settings].
2
Enter up to 24 alphanumeric characters for the pre-shared key and click [OK].
Security
[SHA1 and MD5]
[3DES-CBC and AES-CBC]
[Group 2 (1024)]
Select the hash algorithm.
Select the encryption algorithm.
Select the Diffie-Hellman group, which determines the key strength.
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