User`s guide

Point-to-Point Protocol (PPP)

The Point-to-Point Protocol (PPP) transports multi-protocol packets over point-to-point links. PPP

encapsulates the data packet, allows the server to inform the dial-up client of its IP address (or client

to request the IP address), authenticates the exchange, negotiates multiple protocols, and

reassembles the data packet for network communication.

Advanced Digi Discovery Protocol (ADDP)

The Advanced Digi Discovery Protocol (ADDP) runs on any operating system capable of sending

multicast IP packets on a network. ADDP allows the system to identify all ADDP-enabled

ConnectPort LTS products attached to a network by sending out a multicast packet. The

ConnectPort LTS products respond to the multicast packet and identify themselves to the client

sending the multicast. ADDP needs to communicate with the TCP/IP stack using UDP. The TCP/IP

stack should be able to receive multicast packets and transmit datagrams on a network. Not all Digi

devices support ADDP. Access to ADDP service can be enabled or disabled, but the network port

number for ADDP cannot be changed from its default.

Secure Shell (SSH)

ConnectPort LTS units support the following types of Secure Shell (SSH) connections: Reverse

SSH and SSH Autoconnect. Limited use of SSH via SSH client is available from the Linux

command line/bash shell. For more information on these connections, see "Supported connections

and data paths.” Access to Secure Shell network services can be enabled or disabled.