A user can remotely connect to the console port of a device using a telnet client to a DECserver. The DECserver will convert the telnet IP protocol data to serial data and pass that communication through the DECserver serial port to the attached device. Additional adapters and cables may be required for this application.
In this example, port 4 of the DECserver will be connected to an Ethernet switch. The Ethernet switch’s serial console port settings are:
- Speed: 115200 Bps
- Character Width: 8 bits
- Stop Bit: 1
- Flow Control: CTS
For all DECserver models except the DECserver 708
- Connect adapter (H8585-AAG) to one end of a straight Ethernet cable (BN25G-xx-5EG)
- Connect that to the 9-pin D-sub serial console port of the Ethernet switch
- Connect the other end (RJ45) of the straight Ethernet cable to port 4 on the DECserver.
For the DECserver 708:
- Connect the null modem cable (BC29Q-10) to port 4 of the DECserver.
- Connect the other end(DB9) of the null modem cable to the Ethernet switch’s serial console port(DB9).
Telnet Listener
Enter the following commands to enable the DECserver to listen for a telnet address and TCP port on the network:
Local> set priv Password> system (This is the DECserver’s default password)
Local> change telnet listener 2004 port 4
Local> change telnet listener ID “switch 21”
Local> change telnet listener 2004 connections enabled
Enter the following commands to enable port 4 of the DECserver to communicate with the Ethernet switch’s serial console port:
Local> change port 4 speed 115200
Local> change port 4 autobaud disabled
Local> change port 4 flow cts
Local> change port 4 access remote
Local> log out port 4
Note: The default character width of the DECserver port is 8 bits therefore no change is required.
Connecting to the Device
Telnet client are installed by default in most workstation applications. Using one of these Telnet client applications, CMD window; Hyperterm configured for IP; SecureCRT, enter the following commands to connect from a PC, through the DECserver, to the console port of the switch:
Local> telnet 10.1.192.176 2004
There is now a remote connection to the serial console port of the Ethernet switch. Follow this process to configure additional ports for remote connection to the console port of other devices.