| 摘要 |
A network access method, an authentication method, a communications system, and relevant devices are provided to support implicit authentication based on subscriber line information in Internet Protocol version 6 (IPv6). The network access method includes: receiving a first request message sent from a User Equipment (UE) on an Access Node (AN), where the first request message carries a Link-Local Address (LLA); obtaining subscriber line information corresponding to the UE; and sending a second request message from the AN to a Broadband Network Gateway (BNG), where the second request message carries the LLA and the subscriber line information and instructs the BNG to perform access authentication. An authentication method, a communications system and relevant devices are also disclosed.
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