12: Maintenance and Operation
SecureLinx SLC User Guide
151
b) Select
to: Lantronix Tech Support
c) Call Lantronix Tech Support and obtain a case number.
Note:
For contact information, click the Lantronix Tech Support link.
d) Enter the number in
Case Number
.
e) Press
the
Email Output
button.
Diagnostic Commands
The following CLI commands correspond to the web page entries described above.
To display the ARP table of IP address-to-hardware address mapping:
diag arp [email <Email Address>]
You can optionally email the displayed information.
To display a report of network connections:
You can optionally email the displayed information.
diag netstat [protocol <
all
|tcp|udp>] [email <Email Address>]
To resolve a host name into an IP address:
You can optionally email the displayed information.
diag lookup <Hostname> [email <
Email Address
>]
To test a device port by transmitting data out the port and verifying that it is
received correctly:
diag loopback <Device Port Number or Name>
[<parameters>]
Parameters:
test <internal|
external
>
xferdatasize
<
Size In Kbytes to Transfer
>
Default is 1 Kbyte.
Note:
A special loopback cable comes with the SLC. To test a device port, plug the cable into the
device port and run this command. The command sends the specified Kbytes to the device port
and reports success or failure. The test is performed at 9600 baud. Only an external test requires a
loopback cable.
To display the route that packets take to get to a network host:
diag traceroute <IP Address or Hostname>