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.
Select [Pre-Shared Key Method] or [Digital Signature Method] for the method used when authenticating the
When the aggressive mode is selected in [IKE Mode], the [Pre-Shared Key Method] setting does not
encrypt the shared key.
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.
To manually set the algorithm, clear the check box and select the algorithm.
Using [Pre-Shared Key Method] for authentication
Select [Pre-Shared Key Method] for [AUTH Method] and click [Shared Key Settings].
Enter up to 24 alphanumeric characters for the pre-shared key and click [OK].
[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.