InGateway Documentation, Release 0.0.1
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Challenge Secrets: specifies the key used for authentication during L2TP tunnel setup. The same
key must be set on both ends of the tunnel.
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Server Name: specifies the name of the L2TP server.
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Client Name: specifies the name of the L2TP client connected to the server.
• Expert Options (recommended: kept blank): specify the parameters used for L2TP debugging.
4.4.4 OpenVPN
In the OpenVPN architecture, when a user accesses a remote virtual address (an address of a virtual NIC,
not a real address), the operating system uses the routing mechanism to send the datagrams (TUN mode)
or data frames (TAP mode) to the virtual NIC. When the service program receives the data, it processes
the data and sends the data to the external network through the socket. When the remote service program
receives the data from the external network through its socket, it processes the data and sends the data to
the virtual NIC. The application software then receives the data. At this time, a unidirectional transmission
process is completed. The reverse transmission process is similar.
4.4.4.1 OpenVPN Client
The parameters of an OpenVPN client are described as follows:
• Enable: enables or disables the OpenVPN client.
• Index: specifies a tunnel ID.
• OpenVPN Server: specifies the IP address or domain name of an OpenVPN server.
• Port: specifies the port number used to establish an OpenVPN tunnel.
• Protocol Type: specifies the protocol used for data transmission. Options are UDP and TCP.
• Authentication Type: Select an authentication type and set parameters for the authentication type.
• Description: specifies the description of the OpenVPN tunnel.
• Advanced Options
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Source Interface: specifies the interface used to establish the OpenVPN tunnel.
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Interface Type: specifies the type of data sent from the interface.
* Tun: mostly used for IP-based communication.
* Tap: allows complete Ethernet frames to pass through the OpenVPN tunnel and provides
support for non-IP protocols.
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Network Type: Options are net30, p2p, and subnet.
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Chapter 1. InGateway Documentation Site Navigation
Summary of Contents for InGateway501
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