Services
E220 Series Cellular Router User Guide 158
PPTP
Network > Interface > PPTP
Point-to-Point Tunneling Protocol (PPTP) is the extension of Point-to-Point Protocol (PPP) for traditional
dial-up network connection. It is the most common protocol that enables the corporates to implement
Virtual Private Network (VPN) for extending their internal corporate network.
PPTP client/user connects to their VPN server using computer, router or any networking device that
supports PPTP. A TCP control connection is then established from client to the server in order to create
a virtual tunnel. PPTP provides security by authenticating the users and packet filtering. PPTP controls
the mapping and managing of VPN tunnel and the data inside the tunnel by encrypting and maintaining
the connection. It stores the data within a PPP packet, which are then further stored inside IP Packets
to be used for their destination. PPTP encrypts and compresses these packets using PPP-based
protocols such as PAP and CHAP. PPTP uses GRE (General Routing Encapsulation) to send/receive
data.
Parameters Description
Interface Overview
Profile Name Displays the all the configured PPTP Interfaces. The pre-configured
interfaces for the router are
• PPTP1
Note
• Default Interfaces PPTP cannot be deleted.
Status Displays the following Interface details:
• RX
• TX
Actions Select the action to be taken for the Interface.
• Connect – Connects the interface or reconnects the
already connected interface
• Stop – Stops the Interface
• Edit – Click to edit the Interface.
• Delete – Click to delete the Interface.
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