EW50 Industrial LTE Cellular Gateway
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5.1.4 PPTP
Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks. PPTP uses a
control channel over TCP and a GRE tunnel operating to encapsulate PPP packets. It is a client-server based
technology. There are various levels of authentication and encryption for PPTP tunneling, usually natively as
standard features of the Windows PPTP stack. The security gateway can play either "PPTP Server" role or
"PPTP Client" role for a PPTP VPN tunnel, or both at the same time for different tunnels. PPTP tunnel process
is nearly the same as L2TP.
PPTP Server: It must have a static IP or a FQDN for clients to create PPTP tunnels. It also maintains “User
Account list” (user name / password) for client login authentication; There is a virtual IP pool to assign virtual
IP to each connected PPTP client.
PPTP Client: It can be mobile users or gateways in remote offices with dynamic IP. To set up a tunnel, add
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