Brother International HL-L5200DWT Online Users Guide HTML - Page 218
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SA (Security Association) is an encrypted communication method using IPsec or IPv6 that exchanges and shares information, such as the encryption method and encryption key, in order to establish a secure communication channel before communication begins. SA may also refer to a virtual encrypted communication channel that has been established. The SA used for IPsec establishes the encryption method, exchanges the keys, and carries out mutual authentication according to the IKE (Internet Key Exchange) standard procedure. In addition, the SA is updated periodically. Perfect Forward Secrecy (PFS) PFS does not derive keys from previous keys that were used to encrypt messages. In addition, if a key that is used to encrypt a message was derived from a parent key, that parent key is not used to derive other keys. Therefore, even if a key is compromised, the damage will be limited only to the messages that were encrypted using that key. Select Enabled or Disabled. Authentication Method Select the authentication method. Select Pre-Shared Key, Certificates, EAP - MD5, or EAP - MS-CHAPv2. Pre-Shared Key When encrypting communication, the encryption key is exchanged and shared beforehand using another channel. If you selected Pre-Shared Key for the Authentication Method, type the Pre-Shared Key (up to 32 characters). • Local/ID Type/ID Select the sender's ID type, and then type the ID. Select IPv4 Address, IPv6 Address, FQDN, E-mail Address, or Certificate for the type. If you select Certificate, type the common name of the certificate in the ID field. • Remote/ID Type/ID Select the recipient's ID type, and then type the ID. Select IPv4 Address, IPv6 Address, FQDN, E-mail Address, or Certificate for the type. If you select Certificate, type the common name of the certificate in the ID field. Certificates If you selected Certificates for Authentication Method, select the certificate. You can select only the certificates that were created using the Certificate page of Web Based Management's Security configuration screen. EAP EAP is an authentication protocol that is an extension of PPP. By using EAP with IEEE802.1x, a different key is used for user authentication during each session. The following settings are necessary only when EAP - MD5 or EAP - MS-CHAPv2 is selected in Authentication Method: • Mode Select Server-Mode or Client-Mode. • Certificate Select the certificate. • User Name Type the user name (up to 32 characters). • Password Type the password (up to 32 characters). The password must be entered two times for confirmation. • Certificate Click this button to move to the Certificate configuration screen. 213