Canon Color imageCLASS LBP712Cdn imageCLASS LBP712Cdn User Guide - Page 312

Security [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] [SHA1 and MD5] [Encryption] [3DES-CBC and AES-CBC] [DH Group] [Group 2 (1024)] To manually set the algorithm, clear the check box and select the algorithm. [Authentication] Select the hash algorithm. [Encryption] Select the encryption algorithm. [DH Group] Select the Diffie-Hellman group, which determines the key strength. 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]. 306