Method and apparatus for authentication in passive optical network and passive optical network

An Optical Network Unit/Optical Network Terminal (ONU/ONT), comprising:

• a logic registration ID receiving module, configured to receive a first negotiation message sent by an OLT and carrying a logic registration ID of the OLT;
• a matching module, configured to match the logic registration ID of the OLT received by the receiving module with logic registration IDs of OLTs authorized for access;
• a logic registration ID sending module, configured to send a second negotiation message which carries a logic registration ID of the ONU/ONT to the OLT, wherein the logic registration ID of the ONU/ONT is used to enable the OLT to authenticates the ONU/ONT;
• and
• a terminal identifier receiving module, configured to receive a terminal identifier allocated for the ONU/ONT, wherein the terminal identifier is sent by the OLT after both the authentication on the ONU/ONT and the authentication on the OLT succeed.

An Optical Line Terminal (OLT), comprising:

• a logic registration ID sending module, configured to send a first negotiation message carrying a logic registration ID of the OLT to an Optical Network Unit/Optical Network Terminal (ONU/ONT), the logic registration ID of the OLT is used to enable the ONU/ONT authenticates the OLT;
• a logic registration ID receiving module, configured to receive a second negotiation message carrying a logic registration ID of the ONU/ONT, wherein the second negotiation message is returned by the ONU/ONT after the ONU/ONT succeeds in authenticating the OLT according to the logic registration ID of the OLT;
• an authenticating module, configured to:
• authenticate the ONU/ONT according to the logic registration ID of the ONU/ONT in the second negotiation message;
• and
• a terminal identifier allocating module, configured to allocate a terminal identifier for the ONU/ONT after the authenticating module determining that the authentication on the OLT succeeds, and send the allocated terminal identifier to the ONU/ONT.