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APPENDIX A: Troubleshooting
Problem:
The terminal connection to the ServSwitch for initial configuration
cannot be established.
Solution:
Check that the null-modem cable connected to DCE serial port on the
ServSwitch and terminal software is set to the following line parameters:
Connection speed: 115200 bps
No. of bits: 8
Parity: None
Stop bits: 1
Flow Control: None
Connect a computer to the ServSwitch and power this computer on. Power on the
ServSwitch while pressing the
ESC
key on the keyboard connected to it. This will
switch the DCE Serial Port 1 to configuration login setting even if it was set to pass-
through or modem.
Also, Windows HyperTerminal has a bug: if you change baud rates while
connected, the screen is updated but the hardware is still at old baud rate. Hang
up and reconnect (using the icons at the top of the screen) to make new settings
take effect.
Problem:
If my network has a firewall, what setting do I use on the ServSwitch to
open a port into the network?
Solution:
You shouldn’t change any settings in the ServSwitch, but you should
open Port 22 for both outbound and inbound connections in your firewall.
Port 22 only needs to be opened for inbound connections. You must use the SSH
tunnel to connect to the machine; tunnel to port 127.0.0.1:5900 for VNC protocol,
and 127.0.0.1:80 for HTTP (Web) control.
Or, instead of the SSH client, open Ports 443 and 15900 (inbound) for HTTPS and
encrypted VNC protocol. Then click on the “encrypted” link. This is easier because
you don’t need to set up SSH tunnels.
Summary of Contents for KV9404A
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