Device Ports

On the Device Ports page, you can set up the numbering of Telnet, SSH, and TCP ports, view a summary of current port modes, establish the maximum number of direct connections for each device port, and select individual ports to configure.

Current port numbering schemes for Telnet , SSH, and TCP ports display on the left. The list of ports 1-16 on the right includes the individual ports and their current mode.  To display additional ports, click the 17-32 button or the 33-48 button, as appropriate.

The modes are:

Idle

The port is not in use.

 

The port is in data/text mode.

Note:  You may set up ports to allow Telnet access using the IP Settings on the Device Ports – Settings page.

An external modem is connected to the port.  The user may dial into or out of the port.

Telnet in or SSH in is enabled for the device port. The device port is either waiting for a Telnet or SSH login, or has received a Telnet or SSH login (a user has logged in).

 

To assign Telnet, SSH, and TCP port numbers:

  1.  Enter the following:

Telnet/SSH/TCP In Port Numbers

Starting Telnet Port

Each port is assigned a number for connecting via Telnet. Enter a number (1025-65535) that represents the first port. The default is 2000 plus the port number. For example, if you enter 2001, subsequent ports would automatically be assigned numbers 2002, 2003, and so on.

Starting SSH Port

Each port is assigned a number for connecting via SSH.  Enter a number (1025-65535) that represents the first port. The default is 3000 plus the port number. For example, if you enter 3001, subsequent ports would automatically be assigned numbers 3002, 3003, and so on.

Starting TCP Port

Each port is assigned a number for connecting through a raw TCP connection. Enter a number (1025-65535) that represents the first port. The default is 4000 plus the port number. For example, if you enter 4001, subsequent ports are automatically numbered 4002, 4003, and so on.

A raw TCP connection can be used in situations where a TCP/IP connection is to communicate with a serial device. For example, you can connect a serial printer to a device port and use a raw TCP connection to spool print jobs to the printer over the network.

Note: When using raw TCP connections to transmit binary data, or where the break command (escape sequence) is not required, set the break sequence of the respective device port to null (clear it).

Caution:  Ports 1-1024 are RFC-assigned and may conflict with services running on the SLC. Avoid this range.

  1. To save, click  Apply.

To set limits on direct connections:

1. Enter the maximum number (1-10) of simultaneous connections for each device port. The default is 1.

2. Click Apply to save the settings.

 

To configure a specific port:

  1. Do one of the following:

2.  Continue with Device Ports – Settings.

 

See also

Device Ports SLP

Device Ports – Sensorsoft Devices

Device Ports Logging

Console Port