10-4
Telnet & SSH Functions
10.3.3. Connecting to a Serial Port using Direct Connect
Direct Connect TCP port numbers are as follows:
1.
Standard Telnet Direct Connection (with Password):
• Serial Ports: TCP port numbers 2101 through 2108.
• Internal Modem Port: TCP port number 2109.
2.
Standard Telnet Direct Connection (without Password):
• Serial Ports: TCP port numbers 2301 through 2308.
• Internal Modem Port: TCP port number 2309.
3.
SSH Direct Connection (with Password):
• Serial Ports: TCP port numbers 2201 through 2208.
• Internal Modem Port: TCP port number 2209.
4.
Raw Socket Direct Connection (with Password):
• Serial Ports: TCP port numbers 3101 through 3108.
• Internal Modem Port: TCP port number 3109.
5.
Raw Socket Direct Connection (without Password):
• Serial Ports: TCP port numbers 3301 through 3308.
• Internal Modem Port: TCP port number 3309.
Note:
In order to create a Raw Socket Direct Connection, the "Raw Socket
Access" parameter for the Network Port must be enabled as described in
Section 5.9.2.
When establishing a Direct Connection, the correct TCP port number must be used. If
conditions are acceptable (e.g. Target Port must be free and properly configured), an
immediate connection will be made, with one possible exception; password entry may
first be required depending on configuration settings.
Note:
When a Direct Connect attempt fails because the Port is busy, the call is
rejected at the TCP level.
Connection Example
1. Assume that Port 8 is configured as described in Section 10.3.2 If the
RSM-8R’s IP address is "1.2.3.4", and you wish to establish a standard Telnet
protocol connection with port 8 (TCP Port Number 2108), then on a UNIX system,
the connect command would be invoked as follows:
$ telnet 1.2.3.4 2108
[Enter]
2. The RSM-8R will first send the site ID, Port Number, Port Name, and Telnet Port
number, and then once a connection is established, the "Connected" message will
be sent.