Digi WAN 3G User Manual page 66

Service
Telnet Server
Telnet Passthrough
Transmission Control Protocol (TCP)
Echo
Transmission Control Protocol (TCP)
Passthrough
User Datagram Protocol (UDP) Echo
User Datagram Protocol (UDP)
Passthrough
Web Server, also known as HyperText
Transfer Protocol (HTTP)
Secure Web Server, also known as
HyperText Transfer Protocol over Secure
Socket Layer (HTTPS)
Network services and IP pass-through
The IP pass-through feature (Configuration > Network > IP Pass-through) causes the Digi
device to be bridged transparently between the Ethernet and mobile data links. Enabling IP Pass-
through disables many device features, including many network services. To provide access to the
device for configuration and management purposes, you can configure a subset of network
services to terminate at the Digi device instead of being passed on to a connected device such as a
router. In the IP pass-through feature, these network services are called pinholes. Services that can
be configured as pinholes include HTTP, HTTPS, Telnet, SSH, and SNMP. See "IP pass-through
settings" on page 87 for more information.
Services provided
Allows users an interactive Telnet session to the Digi device's
command-line interface.
If disabled, users cannot Telnet to the device.
Allows a Telnet connection directly to the serial port, often referred to
as reverse Telnet.
Used for testing the ability to send and receive over a TCP connection,
similar to a ping.
Allows a raw socket connection directly to the serial port, often
referred to as reverse sockets.
Used for testing the ability to send and receive over a UDP connection,
similar to a ping.
Allows raw data to be passed between the serial port and UDP
datagrams on the network.
Access to web pages for configuration that can be secured by requiring
a user login.
HTTP and HTTPS, below, are also referred to as Web Server or
Secure Web Server. These services control the use of the web
interface. If HTTP and HTTPS are disabled, device users cannot use
the web interface to configure, monitor, and administer the device.
Access to web pages for configuration that can be secured by requiring
a user login, with encryption for greater security.
C o n f i g u r e D i g i d e v i c e s
Default
network
port
number
23
2001
7
2101
7
2101
80
443
6 6