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LAC-Initiated L2TP Connection upon Receiving a Call Connection Request
An enterprise has a branch located in another city, and the branch network is a traditional dial-up network. Branch users need to establish VPDN connections with users in the headquarters. Therefore, the branch users apply for the L2TP service from the ISP. The ISP configures the NAS as the LAC to send call connection requests to the LNS through the Internet. The gateway in the headquarters is configured as the LNS to establish VPDN connections between the branch and the headquarters.
