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MSS User Guide 6: Troubleshooting
6-4
The modem should be configured to answer the phone if incoming connections
are to be supported. Generally this is done with the ats0=1 command.
The modem should not be configured to answer the phone unless the MSS
asserts DTR.
MSS Modem control must be enabled. Using modems on ports without modem
control enabled will lead to security problems.
The MSS Autobaud feature should be enabled only when required.
Entering Commands at the Boot Prompt
If the Boot> prompt appears on the serial console instead of the Local> prompt, one of
two things may be wrong. Either the MSS does not have enough information to boot, or
the network or flash boot has failed. If pressing the Return key does not display a
prompt, press any other key. The Boot> prompt should appear.
If the MSS does not have enough information to boot, or the network or flash boot has
failed, it will print a message to the console and wait ten seconds for serial port activity. If
it does not detect serial port activity, it will continue booting provided the flash is good.
However, if the user presses a key during that ten second time period, the MSS will
display the Boot> prompt.
Note: If you see the message "Will attempt another download in x minutes," press any
key for the Boot> prompt.
A series of commands called Boot Configuration Program (BCP) commands can be
entered at the Boot> prompt to configure the MSS. These commands are a subset of the
entire MSS command set. For example, a typical TCP/IP configuration might use the
following commands:
Figure 6-1: Command Examples
Boot> CHANGE IPADDRESS 192.168.0.10
Boot> CHANGE SOFTWARE /tftpboot/MSSVIAx.SYS
Boot> CHANGE LOADHOST 192.168.0.16
Boot> CHANGE SECONDARY 192.168.0.10
Boot> FLASH
% Initialization begins in 5 seconds.....
These commands set the device server's address, the software loadfile, and the
loadhost's IP address (as well as that of a backup loadhost). The device server then
reboots using the Flash command and will attempt to load the file MSSVIAx.SYS,
MSS4.SYS, or MSS100.SYS from the host at 192.168.0.16.
HELP
Displays a one-page summary of available commands and what they do.
INIT 451
Reboots the MSS after it has been configured. If the MSS can find and load the specified
software loadfile, it will restart itself with full functionality. If the loadfile is not found, the
device server tries to reload continuously. If there is an error, or if the console's Return
key is pressed, the MSS will re-enter the Boot Configuration Program.
CHANGE BOOTP {Enabled, Disabled}
Enables or disables the sending of BOOTP queries during the boot sequence. It is
enabled by default.