(The 802.1x protocol originated from the 802.11 protocol, which is the IEEE wireless LAN protocol. The original intention of formulating the 802.1x protocol is to deal with the access authentication problem of wireless LAN users. The local area network defined by the IEEE802LAN protocol does not provide access authentication. As long as the user can access the local area network control device (such as LANSwitch), he can access the equipment or resources in the local area network. This does not present a significant security risk in the early enterprise network wired LAN environment.)
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