Copyright © 2006 – STM Norway AS
Publication no. 101557, Rev. T, November 3
th
, 2006
Page 99
L.2
Debugging network connections
Ping is a useful tool to debug network connections.
A ping test can be done from a PC connected to the Ethernet port of the STM SatLink Terminal (e.g. from
Microsoft command prompt).
Use the following commands:
1.
Ping the Ethernet interface IP address of the STM SatLink Terminal (e.g. 10.10.20.1). If not OK
please check the Ethernet cable and the connection to the SatLink terminal.
For SatLink 1900 and 1901 only: Check that the terminal’s Ethernet port is operating in the
correct mode. The switch should be set to HUB for direct PC to STM SatLink Terminal
connections using a straight Ethernet cable.
2.
If the Ethernet connection is OK then check the IP configuration and routing table of the PC (e.g.
type the MS-DOS commands
ipconfig
and
route print
) and check the IP configuration of the
STM SatLink Terminal (use the CLI command
ip show
).
3.
If the ping to the SatLink Terminal is successful, try to ping a known Internet address (e.g.
www.google.com). If successful the connection to Internet is OK.
If not OK check that the PC DNS IP address is correct. Try also to ping a known IP address on
the Internet, e.g. ping 195.204.181.169.
4.
If none of the above solves the problem the System Operator must be contacted.
The following commands may also be useful:
•
ping –t <ipaddr>
start a continuous ping test towards the specified IP address in order to gather
statistics
•
use
ctrl-break
to read statistics during test (This option is not supported by all Windows operating
systems)
•
use
ctrl-c
to stop the test
L.3
Manual software upgrade or dload fails
Manual software upgrade or download of file using CLI command
dload
can fail if there is not
sufficient available memory in the STM SatLink terminal file system. This can happen if several software
images have been downloaded to the terminal without deleting the older backup images.
The STM SatLink Terminal file directory normally contains two application files, namely:
•
dvb-rcst.tgz
10
The current DVB-RCS application
•
xxx.bak
The back-up DVB-RCS application
in addition to the smaller configuration and log files.
To view the STM SatLink Terminal file directory, type the CLI command
dir
. There should not be more
than the above listed application files.
10
The name may differ, but the extension will be “tgz”.