An embodiment of the present application discloses a
system, method, device, electronic device, and storage medium for a
broadband access network. The method includes: a first ONU for initiating a first registration request to an OLT through a first
local area network address. The first registration request includes a first account number of the first ONU and a first range of a CVLAN corresponding to the first ONU, and the first range is obtained from the historical network access data of the first ONU; the OLT is configured to pass the first registration request when the first range is within a preset range and forward the first registration request to the BRAS; the BRAS is configured to query a second
local area network address of the first account number, where the second
local area network address is the local
area network address when the first account number last accessed the network; and when the first local
area network address matches the second local
area network address, allow the first ONU to access the network. According to the embodiment of the present application, secure and efficient
broadband access to the network can be guaranteed.