Avocent Cyclades ACS, Installation/Administration/User Manual

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26 Cyclades ACS Advanced Console Server Installation, Administration and User Guide
Connection protocols for serial ports
You can access a server or a device connected to a serial port by using the connection protocol
specified for the port. The following table shows the protocols available for the serial ports.
TCP port numbers for serial ports
The TCP port numbers by default start at 7001 for serial port 1 and increment up to the number of
serial ports on your console server. The console server administrator may change the default port
numbers if needed.
To use Telnet to connect to a device through a serial port:
For this procedure you need the hostname of the console server or its IP address and the TCP port
number for the serial port to which the device is connected.
• To use Telnet in a shell, enter the following command:
telnet hostname | IP_address TCP_port_number
To close a Telnet session:
Enter the Telnet hotkey defined for the client. The default is
Ctrl ]
and
q
to quit.
To use SSH to connect to a device through a serial port:
For this procedure, you need the username configured to access the serial port, the TCP port
number and the hostname of the console server or its IP address.
• To use SSH in a shell, enter the following command:
ssh -l username:TCP_port_number console server_IP_address
To close an SSH session:
Enter the hotkey defined for the SSH client followed by a period. The default is
~
.
NOTE: Make sure you enter the escape character followed by a period at the beginning of a line to close the
SSH session.
Table 3.3: Available Serial Port Protocols
Connection Type Protocol
Console Access Server (CAS) Telnet, ssh, Telnet&ssh, Raw
Terminal Server (TS) Telnet, sshv1, sshv2, Local Terminal, Raw Socket
Dial-up PPP-No Auth., PPP, SLIP, CSLIP
Other Power Management, Bi-directional Telnet