Digi Connect WAN Series User Manual page 13

Digi Connect WAN Family features
Reverse telnet, often used for console management or device management
n
Telnet autoconnect
n
RFC 2217, Telnet Com Port Control Option, an extension of the telnet protocol
n
For more information on these connections, see
or disable access to telnet network services.
Remote login (rlogin)
You can enable or disable access to rlogin service. When enabled, users can use rlogin to remotely sign
in to systems.
Line Printer Daemon (LPD)
The Line Printer Daemon (LPD) allows network printing over a serial port. Each serial port has a
dedicated LPD server that is independently configurable. You can enable or disable access to LPD
service.
HyperText Transfer Protocol (HTTP)/HyperText Transfer Protocol over Secure
Socket Layer (HTTPS)
Digi provides web pages that you can use to configure the Digi Connect WAN Family product. You can
secure these web pages by requiring a user login.
Internet Control Message Protocol (ICMP)
You can display ICMP statistics, including the number of:
Messages received
n
Bad messages received
n
Destination unreachable messages received
n
Point-to-Point Protocol (PPP)
The Point-to-Point Protocol (PPP) transports multi-protocol packets over point-to-point links. PPP is
responsible for:
Encapsulating the data packet
n
Allowing the server to inform the dial-up client of its IP address (or client to request the IP
n
address)
Authenticating the exchange
n
Negotiating multiple protocols
n
Reassembling the data packet for network communication
n
Digi Connect WAN Family devices support PPP as the connection protocol from the Digi device to the
cellular IP network with NAT (Network Address Technology).
Network Address Translation (NAT)/port forwarding
Network Address Translation (NAT) reduces the need for a large amount of publicly known IP
addresses by creating a separation between publicly known and privately known IP addresses.
Digi Connect WAN Family User Guide
Network connections and data
IP protocol support
paths. You can enable
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