Digi Connect Series

Digi Connect and ConnectPort TSFamily features RealPort software
Digi Connect Family and ConnectPort TSFamily
14
Line Printer Daemon (LPD)
TheLine Printer Daemon (LPD) allows network printing over a serial port. Each serial port has a
dedicated LPDserver that isindependently configurable. You can enable or disable accessto LPD
service.
HyperText Transfer Protocol (HTTP)/HyperText Transfer Protocol over Secure
Socket Layer (HTTPS)
Digi providesweb pages that you can use to configure the Digi Connect and ConnectPort TSFamily
product. You can securethese web pages by requiring a user login.
Internet Control Message Protocol (ICMP)
You can display ICMPstatistics, including thenumber of:
n
Messages received
n
Bad messages received
n
Destination unreachable messages received
Point-to-Point Protocol (PPP)
ThePoint-to-Point Protocol (PPP) transports multi-protocol packetsover point-to-point links. PPPis
responsible for:
n
Encapsulating the data packet
n
Allowing the server to inform the dial-up client of itsIPaddress(or client to request the IP
address)
n
Authenticating the exchange
n
Negotiating multiple protocols
n
Reassembling the data packet for network communication
Advanced Digi Discovery Protocol (ADDP)
TheADDPrunson any operating system capable of sending multicast IPpackets on a network. ADDP
allowsthe system to identify all ADDP-enabled Digi Connect and ConnectPort TSFamily products
attached to a network by sending out a multicast packet. TheDigi Connect and ConnectPort TS
Family products respond to the multicast packet and identify themselves to the client sending the
multicast.
ADDPcommunicates with the IPstack using UDP. The IPstack can receive multicast packetsand
transmit datagramson anetwork.
You can enable or disable accessto ADDPservice, but you cannot change the network port number
for ADDPfrom itsdefault.
RealPort software
Digi’s RealPort software leveragesthe TCP/IPnetwork infrastructure to provide a virtual connection to
serial devices. The software isinstalled directly on the server and allowsapplicationsto talk to
devices via a Digi device server or terminal server over a network.
RealPort software isa COMport redirector that allows multiple connectionsto multiple ports over a
single TCP/IPconnection. This meansRealPort supports the maximum number of remote devices. The
number is restricted only by the operating system and server processing power.