Supported Protocols
30 Chapter 4
4. Fill in the highlighted fields as they apply to your configuration.
• Host mode: The options are console server mode, terminal server
mode, dial-in modem mode, and dial-in terminal server mode
• Base address: Also known as alternate IP where the user can Telnet
directly to a serial port using an IP address
• Base port: Also known as reverse Telnet where a user Telnets to a port
using an IP address and a port number
• Destination address: In terminal server mode the user connects directly
to a port using an IP address
• Destination port: In terminal server mode the user connects directly to a
port with an IP address and port number
• Protocol: The options are SSH, RawTCP, and Telnet
• SSH break sequence: The sequence of characters that sends a break
character to a device
• Inactivity timeout: The timeout length ranging from 1 to 3600 seconds, 0
is unlimited timeout
• Modem init string: Use the default string or enter your own string
5. Choose Save to flash and Apply changes.
Supported Protocols
. In configuring a serial port, the user has three protocol options. The three
protocols available are: RawTCP, SSH, and Telnet. Choose SSH as the
protocol for users logging in from an SSH client program to access a port.
Choose RawTCP for users connecting directly to a TCP socket. Choose Telnet
for users logging in from a Telnet client program and accessing the ports. Use
the Host mode configuration page in the web interface to select the correct
protocol.
Port Parameters
In attaching a serial device to a Digi CM serial port, the port parameters must
match. The serial ports by default are enabled meaning users have full access
to the port. To configure the port parameters for the Digi CM, do the following:
1. Access the web interface.
2. Under the Serial Port heading choose Configuration.
3. Choose All or an Individual port > Port parameters.
4. Fill in the following parameters:
bps=9600, data bits=8, parity=none, stop bits=1, flow control=none, and
DTR behavior=always high.
The Digi CM sup-
ports three protocol
options: SSH, Raw
TCP, and Telnet.
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