As the title. The optical modem is in the routing mode on the external network. The first-person dial-up VPN is used normally. If the second person dials, the first person will disconnect from the VPN. Cannot be used by multiple people at the same time.
It is not the problem of the VPN server, because FTTB access, using a common router, does not have this problem.
Establish two same PPPoE dial-up connections in the optical modem, corresponding to different LAN ports, you can use VPN at the same time. However, this method is not formal. It is necessary to allow the PPPoE account to be online 2 or more times, and it needs to be set on the site of the optical cat.
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