Digi Connect SP User Manual page 40

Service
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)
IP filtering settings
You can restrict your device on the network by only allowing certain devices or networks to connect. This is better
known as IP Filtering or Access Control Lists (ACL). By enabling IP filtering, you are telling the device to only accept
connections from specific and known IP addresses or networks. You can filter devices on a single IP address or restrict
device to a group of devices using a subnet mask that only allows specific networks to access to the device.
CAUTION!
IP Filtering Settings settings include:
•
Only allow access from the following devices and networks: Enables IP filtering so that only the specified
devices or networks are allowed to connect to and access the device. Note that if you enable this feature and the
system from which you are connecting to the Digi device is not included in the list of allowed devices or networks,
then you will instantly no longer be able to communicate or configure the device from this system.
Automatically allow access from all devices on the local subnet: Specifies that all systems and devices on

the same local subnet or network of the device should be allowed to connect to the device.
Allow access from the following devices: A list of IP addresses of systems or devices that are allowed to
connect to this device.
Allow access from the following networks: A list of networks based on an IP address and matching subnet
mask that are allowed to connect to this device. This option allows grouping several devices that exist on a
Digi Connect Family and ConnectPort TS Family User Guide
Allows a telnet connection directly to the serial port, often called
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
called 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 to sign in. HTTP and HTTPS, below, are also called
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 to sign in with encryption for greater security.
Plan and review your IP filtering settings before applying them. If the settings are incorrect, the Digi
device will be inaccessible from the network.
Services provided
Default
network
port
number
2001
7
2101
7
2101
80
443
40